As a tourist in SF about two weeks ago I experienced a bit of superhuman driving from a Waymo. On one of these 30-degree downhill slopes, a long truck was stopped in the middle of the road and to its right and slightly ahead was a parked car. The space between these two was just about right so that a 45-degree-turned Waymo car would barely fit with less than an inch space on either side. This is exactly what it did, without much hesitation. As a human driver, I would have stopped, tried to squeeze back up and find another way, or stop and try to locate the truck driver and ask them to move.