Surveillance video from an Ambridge, Pennsylvania, woman's home caught the bumper-to-bumper mayhem that ensued after a garbage truck with no one behind the wheel started rolling down the street and crashing into parked cars as workers chased it.
The chaos began last Friday morning after the truck's driver stepped out and walked about 10 feet away to speak to his supervisor, according to a report the New Brighton Area Police Department sent to ABC News.
The brakes then "disengaged" and the truck began to roll "driverless," hitting the bumper of another car, which then hit four more cars before the fifth car was pushed sideways, stopping the domino-effect, police said.