Enterprise Holdings manages theirs via fleet, so while a BMW ID can be added, the car is generally fleet restricted. Includes restrictions on capabilities like using (the cursed) subscription "features" you've paid for.

So yeah at least one of the big renters has handled it appropriately on the cars I've rented from them.

They seem to be better with some brands of cars than others, the sports car I rented from them was not reset or restricted in any way.