Tesla already does. If you have an accident in a Tesla, it will shut down its computer and you can't reactivate it without bringing it to a Tesla dealership. While I understand why they want to do it that way, it's inherently customer-hostile, because Tesla can refuse to re-activate the car. Imagine if you have a 15 year old Tesla that gets into a minor fender bender, and Tesla says that they won't reactivate your car because it's not supported anymore - but they are super happy to sell you a new one.