The comments here are funny. Having lived in Seattle, owning 2 teslas and actually watching more than this single clip of a beta software: this is deliberate testing in a crazy corner case of a road. The driver is nervous because of the pillers. I use navigate on autopilot (FSD for the masses) literally every day and it navigates multiple highways, every day. It's awesome. Please continue skepticism and never partake, more room for me at the superchargers.