So what emergency are you thinking of?
You aren't on a road and the car is confused about how to move around. You are now stranded because you can't drive the car. I have yet to see any self-driving car even attempt to be reasonable in off-road driving.
Your buddy's cabin in the woods, grass parking at a venue, natural disaster and the road is gone, a country driveway, getting into your backyard with the shit your bought at home depot, etc, etc.