Seems like the protestors are not required for this to happen:
> The city’s transportation agencies documented several incidents where driverless cars disrupted Muni service. During the night of Sept. 23, five Cruise cars blocked traffic lanes on Mission Street in Bernal Heights, stalling a Muni bus for 45 minutes. On at least three different occasions, Cruise cars stopped on Muni light-rail tracks, halting service.
Meanwhile, these additional things are happening:
> San Francisco firefighters were battling a two-alarm apartment blaze on the corner of Hayes and Divisadero streets during a recent Sunday morning when a driverless Cruise car entered the active firefighting scene and nearly ran over fire hoses on the street.
> Firefighters at the scene stood in front of the car to try to get it to stop, but the autonomous vehicle came to a halt only after one of them smashed the Cruise car’s front window amid the chaotic effort to put out a fire that displaced 25 people, according to city transportation officials.
> A Cruise vehicle came to a stop after nearly colliding with a Muni N-Judah train at the intersection of Carl and Cole streets. The Cruise car blocked light-rail tracks in both directions for close to seven minutes.
https://www.sfchronicle.com/projects/2023/self-driving-cars/
> A passenger in a driverless Cruise vehicle suffered injuries on Thursday after the vehicle was struck by a San Francisco fire truck that was responding to an emergency call.
> Now, the California Department of Motor Vehicles has requested the autonomous vehicle company cut its San Francisco fleet in half, following this latest incident. Cruise told KTVU the company will comply with that request.
https://www.ktvu.com/news/cruise-robotaxi-with-passenger-cra...