This was a bug even in old noobonic. when your cp you can click on people in the tab menu and there will be a little (un)wanted button in the bottom which toggles their wanted status but special agents don't have the button in their tab menu.

The way already spawned vehicles works now kinda sucks. as of now the way it works is that if your vehicle is spawned you can't spawn another one even if you don't own it, and it won't despawn if someone else owns it so your stuck with not having a ride if someone decides to own your car. the way it used to work is once you spawned a perm car, there'd be a timer (somewhere around 10 minutes) that you'd have to wait on before you could spawn another one, but it would let you spawn it whether or not your old one was spawned or not (as long as it wasn't owned by you)