Yes you can register truck with disability plates on it. Personal lately though I've lost all respect for AAA I went down to try to buy insurance through them and they said because my California license was barely two years old I couldn't insure with them even though I've driven for the past 40 plus years. I recently got a new California license the AAA didn't want to look at the old license and see all of my driving history there. So they refused to sell insurance to me for three vehicles that I wanted to insure through them. I ended up going to State Farm which gave me a better price deal along with Towing.
They will take the plates
Yes you should be able to do that. Also if you have disability you dont have to wait in line at the DMV you can just walk up to an open window and they will take care of you next. The AAA you have to wait but usually doesnt take long in comparison to the DMV.
Yes. The plates should have stayed with the previous owner and will need to be surrendered at the time of transfer (because they're DP plates). You will receive new plates and registration card/sticker when the truck is registered in your name.
Thanks! Your answer is awaiting moderation.