Even on two lane roads: if an idiot overtakes into oncoming traffic there is usually just enough space for three vehicles next to each other. Can a Waymo move sharply to the right so there are two cars on each side with the overtaking idiot in the middle and all just fit on the road? I had to do that maneuver at least twice.

Can a Waymo prevent a carjacking when someone places traffic cones in front of it?

Can you open the Windows and get out if the thing decides to drive into a lake?

I don't know, currently defensive driving is the better option.