Emergency first-responder leaders told federal regulators in a private meeting last month that they were frustrated with the performance of autonomous vehicles on their streets—that city firefighters, police officers, EMTs, and paramedics are forced to spend time during emergencies resolving issues with frozen or stuck cars. One fire official called them “a safety issue for our crews as well as the victims.” WIRED obtained an audio recording of the meeting. Officials from San Francisco and Austin, where Waymo has been ferrying passengers without drivers for more than a year, said the vehicles’ performance is getting worse. “We are actually seeing something interesting: backsliding of some things that had improved upon,” Mary Ellen Carroll, the executive director of San Francisco’s Department of Emergency Management, told officials with the National Highway Traffic Safety Administration (NHTSA), which oversees self-driving vehicle safety in the US.…