A self-driving car that refuses to move after a minor accident on a wilderness road sounds like a great opening scene for a horror movie.

Probably any self-driving vehicle should have a button you can push that amounts to consenting to "The car will now record that you initiated a manual override. You are now in full control. Anything you do is your responsibility." Insurers will throw a fit if you push this button but it's better than being stuck in a bad situation because your car can't figure out a way out of it.

Likewise, in most discussions of self-driving cars, it is noted that they probably won't work well in the snow. Someone (presumably not from a snowy area) will then say that the car will pull over and wait, as you shouldn't be driving in a snowstorm anyway. They never say what's supposed to happen next, with the highways full of people whose cars have stranded them. Are they all supposed to call for cabs? But wait, cabs have been replaced by self-driving cars...

Yes, unless it's level 5. Then you walk.