Interesting. You’d definitely have some crash detection. A remote human operator could be assigned to take over when the car stops to drive around some obstacle in an unexpected situation. If a crash happened (whether or not it was remote controlled), you could have speakers/cameras/microphones allow the operator to communicate with bystanders until help arrives. Police would need to be called for a major accident, while for a fender bender you can probably just send a car with some security people to pay off the other driver and get them to sign an NDA, and drive the crashed car back to base.