Federal authorities have expressed concern that robotaxis are interfering with first responders, characterizing the issue as a "functional insufficiency". The feds are demanding that autonomous vehicle companies find solutions to this problem, with some outlets reporting that companies are being asked to address a pattern of interference. The extent and specifics of the interference vary, with reports of robotaxis stalling at events, driving into floods, and requiring remote assistance, prompting complaints from emergency responders in cities such as San Francisco and Los Angeles.