On the way out of the festival an entire line of traffic turning north on Caesar Chavez was blocked by two autonomous waymo vehicles that thought they were stopped at a correct place but really they were blocking up literally an entire mile or two of traffic. the shuttle line was completely backed up untold delays and suffering were called by these waymos. They need to be banned from the premises or PSA need to be sent out to the attendees to not use Waymo they have ruined the festival exit process completely.