You have a good policy and habit.
What I see as the problem is unpredictable circumstances. Take for example black ice, animals at night. vehicles of any kind losing control.
No amount of GPUs fed by LIDAR can recover in the way humans do. When cars have additional federated communications, inter-vehicle, the communications will have to be monitored, too, increasing complexity. Will someone/thing jam them? Will inter-vehicle communications be mandated? What's the format?
In an accident, what can be proven at a reasonable cost? What are the forensics? Will a vehicle refuse to travel if passengers are unbuckled from their seat belts?
What of the privacy implications inherent when you tap your credit device? Can you just go to the store? Will there be surge pricing?
There are many real and practical questions that should be answered first-- not after costly litigation all the way to the highest courts of the land.
tl;dr: autonomous vehicles aren't ready, aren't trained, and will prove to be a nightmare, only making the lawyers rich.