Waymos indeed make odd and non-human maneuvers. A quite frequent one is inching forward jerkily as it pulls over (<5mph) at which point there's usually no-one moving nearby either.
Waymo has veered into oncoming lanes a few times, though traffic was stopped at that intersection. I've really never witnessed any risky maneuver that would endanger property, humans, or even warrant a ticket.
BUT... motorists and pedestrians HATE Waymo with a passion. I was literally spit upon when riding a scooter-share and it may get worse in those comfy white Jaguars.
No overt incidents yet, but several passers-by have vocally expressed their ire, and there is no shortage of folks who deliberately block our path just because I have no control. But I suspect, violence will arise as the pressure rises.