Either the same place or a nearby one (same pair of highways) did trick a human driver two years ago: https://www.ntsb.gov/investigations/AccidentReports/Report

Either the same place or a nearby one (same pair of highways) did trick a human driver two years ago: https://www.ntsb.gov/investigations/AccidentReports/Reports/HAR1701.pdf https://www.ntsb.gov/investigations/AccidentReports/Reports/... "[...] when it entered and traveled in an unmarked gore area, rather than the intended high-occupancy-vehicle (HOV) lane, and collided with a crash attenuator. The 990-foot-long gore, with an unmarked inside area, separates the left exit HOV lane for State Route 85 from the US-101 HOV lane."