Just before Patti Smith took the stage in San Francisco this month, the emcee thanked sponsors, including robotaxi company Waymo.

The audience booed, reflecting the hostility that¡¯s growing in the city for one of tech¡¯s most-watched industries.

There was the recent incident when a fleet of driverless vehicles froze and blocked traffic during a Friday night concert at North Beach. Days later, an autonomous car got stuck in wet cement at a construction site, and then a robotaxi crashed into a firetruck responding to an emergency call. Weeks earlier, pet lovers were mortified when a vehicle struck and killed a small dog.