Legal Car seat safety

So l have a one year-old with a 90th percentile baby, she is just about 3 feet tall and 27 1/2 pounds. I suffer from PTSD anxiety so I’m a little bit shook up right now because I couldn’t get away from Co-parent fast enough and I just wanna know if I did the right thing or not … Person for us I had to literally threaten that we couldn’t go forward with exchanges with Michael. Didn’t upgrade the car seat to a transitional booster. I even sent him screenshots of examples. He’s very difficult and hard to talk to and of course he’s my abuser. Something scares me. We communicate on a parenting ask, and when he changed the car seat three weeks ago, it was facing the backseat of a Honda but because it looked like he got the right car seat. I didn’t say anything about it because at least it was the right car seat and of course he had his girlfriend who also gaslight me by proxy And they’ve literally ganged up on me multiple times and I don’t feel safe getting in the car so I wasn’t going to approach it to say anything to be screamed at again… Last week when he dropped her off to me, she was facing in the front seat of his work, pick up truck, the one with the utility bins on the side !! of course it takes about 20 minutes or so for an officer to show up even though we’re in front of the police department (ironic) but of course I wanted to take my daughter and I didn’t wanna cause too much trouble because she was facing out a drop off in the front seat of his pick up which is a work truck and she needed to be rear facing until she’s 50 pounds? I’m pretty sure when I went through car seat safety and asked somebody before I fully transitioned her once I got her doctors appointment and got her new height and weight documented. They said that the child can be transitioned to a toddler seat, but it has to be backwards until she’s at least 50 pounds 45 pounds as option and depending on the car seat and of course her height. Anyways, he fast forward to today. He picked her up or he attempted to and his pick up truck in the car seat once again was facing, and I made sure to get out first and I brought a witness, I politely informed him that he needed to turn the car seat around because it is not legal for her to be that way until she is at least 50 pounds Which as far as I’m concerned is the law!?!? (I live in California) I’m pretty sure if any officer in their right mind saw my one year-old in the front sheet of a pick up facing they would have grounds to not pull him over, but to write him up her legs, barely dangle off the edge let alone her weight being barely 27 pounds.. AnyWho, my actions were that if he refused, I would end up just going home even after offering my own car seat which I did! I have a safety first car seat. It goes from newborn all the way until booster seat with the regular seatbelt forward face up to 100 panels. I immediately offered him to just take her in my car seat so he could throw his in the back and take mine so he can go find one that turns around because his comment that he made as to why he shouldn’t turn the car seat around because his car seat doesn’t turn around. It only goes forward, not backwards. Which, of course, is an issue because she needs to rear face because even if somebody else crashes into him, I’ve seen the videos where you can literally be decapitated and die from impact with the child facing from their own seatbelt because they were the wrong direction… I know it probably sounds like I’m super overreacting, but I’m like the way he completely refuse that it’s absolutely Legal because she’s 3 feet tall to be facing in the front seat of a pick up truck😪 I don’t even get me started on the airbags. The first pick up truck he had because he always has multiple cars behind you, it was an 89 Silverado and it wasn’t made to come with airbags so I didn’t have to worry about the airbags before and she was in an infant car seat. Now she’s a toddler and his girlfriend his friends don’t wanna be involved because he always tries to do something stupid and the police get calm so now no one wants to go with him unlucky me I’m forced until the court order changes🫤 But I got out. I addressed the issue with the car seat. He not only refused. He blatantly refused to take my car seat in replacement so he could still take the child so that at least she was still rear facing, which, as far as concern is the law and of course, if the child is not safe in the car seat, then the child can’t go forward with the exchange. So he refused to turn the car seat around because unfortunately, it does not do that. She’s in the front seat of a pick up and that’s the only car he has. He refused to take my car seat in replacement, which would’ve been better for the child. But of course, he has personal issues pretending like he’s too good to take anything from me, knowing the only one of the two of us that old thing over the other is him! I immediately called dispatch to have an officer reached out so I can get an instant number and of course to clarify the car seat safety thing because this is ridiculous. We also have week on week off has arrangements and I honestly don’t feel like dealing with him and going back-and-forth with him. I did everything I feel like I could’ve done to try and get him his time and he made it harder on himself being an ass for usual. .. and the crazy thing is he’s my abuser and I still feel likeweird and guilty..