This actually happened and was on video as well. It was the first week smart summon came out. A Tesla was moving, already behind a car, then the car just backed out into it. A typical parking lot crash that happens all the time. Parking lots are terrible places for accidents.

Of course many in the media took the video and created a headline which was VERY misleading.. "Tesla smart summon gets into accident"... while yes, that is true, it was no fault of the Tesla doing smart summon.

What if I'm driving a car and get hit by another car (in such a way that it is not my fault)?

I imagine it would be the same.

except that you're nowhere near your car

Never mind the law, have the actuaries caught up with developments?

i'm not a lawyer, but my guess for both questions, the driver's inability to provide an eyewitness account would probably heavily bias towards their fault. Kind of like if you were driving your car with your eyes closed.

I imagine that the footage from the car's built-in cameras could take the place of an eyewitness account

The new Tesla cars have 8 cameras. You can download the video to a USB drive.

Or hops in...