It seems likely to me that automated cars could do the following with incremental, predictable progress: 1) Drive with good road conditions on pavement in areas

It seems likely to me that automated cars could do the following with incremental, predictable progress: 1) Drive with good road conditions on pavement in areas that have accurate maps. 2) Recognize when conditions change and the car has a lower chance of functioning correctly. 3) When 2 occurs, pull over and yield to the human, or turn around and go back to another location. This isn't the fantasy of "get wasted, get driven home, no matter what," but it seems good enough to ensure people are safe. Maybe you can get home, or maybe you sleep it off on the side of the road, or maybe your car drives you to a motel.