I have questions about Waymo's taxi service. I'm certain that they occasionally run into situations that require human intervention, or at least need to be prepared for such an eventuality (see examples below). In such scenarios, what happens? The passenger operates the car? A remote operator takes controls? The car refuses to move and becomes a hazard or causes congestion?
For example, you come up to a 4-way intersection and a traffic cop there signals you to stop and says you can't go through because all the man-hole covers are off, but since you want to turn left you can go through the parking lot of the corner gas station to get onto the other road.
For another example, right after the st-patrick's day parade is over or right after the college town's team has just won the NCAA championship, the street is full of people and the car has to inch forward at a rate of half of a mile per hour and the pedestrians don't get out of the way until the car is about to touch them.