SAN FRANCISCO (CBS SF) — A car that was spotted last month during what San Francisco police called “an illegal exhibition of speed event” that included a person waving what looked like an AK-47 rifle out of a window was seized Wednesday, authorities said.

The information came from a Twitter post by the San Francisco Traffic Safety account. The post said that the passenger was seen leaning out of the window of a Cadillac with the weapon in the area of Barneveld and McKinnon on July 11.

Read more