The owner of this pickup, who lives across 101 from this house at 3804, drove home, said he parked his pickup in his driveway and set the foot brake. A little while later he learned that his vehicle had rolled down his driveway backwards, shot right across all lanes of 101 (managing not to hit anything), bounced off a tree in a yard and smashed rear-first into a mobile home damaging the southeast corner.
There were people at home but they were not hurt.
Owner of the pickup told police he definitely set the brake.
It appears it’s now up to the insurance companies to sort it out.