New York CNN —San Francisco residents were caught off guard this weekend after Cruise self-driving cars caused a traffic jam, according to social media posts. The obstruction came a few days after California regulators approved robotaxi companies to operate their driverless cars 24/7 throughout the city. One account, FriscoLive415, said the incident was a “complete meltdown.”Witnesses told CNN affiliate KPIX-TV that the driverless cars were blocking intersections Friday evening for about 15 minutes, causing concern that driverless cars could impede emergency vehicles from accessing the area. That means residents and visitors to San Francisco will be able to pay a fare to ride in a driverless taxi, ushering in new automated competition to cab and ridehail drivers. The San Francisco Police Officers Association, San Francisco Deputy Sheriffs’ Association and the San Francisco Fire Fighters Local 798 all wrote letters to the CPUC expressing concerns that autonomous vehicles could impede emergency responders.

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