"and the ability to lock it's doors and drive someone to a police station"

That's unlikely, without a change in the law. Some modern cars do allow the doors to be locked remotely, but they don't prevent the doors from being unlocked from inside. Nor could I imagine an autonomous vehicle not stopping (for safety) when a door opened.

I imagine that being able to identify the person renting the car, and cameras to show their actions, would be deterrence for most. For the rest, there's insurance.