Reddit user, Astarlyne, linked to this video taken by road bicycler, Kevin Selagea, who was tailgated by an angry driver. The roaddie has a camera tracking his speed, and another looking behind him, which for the bicycler, is probably the best way to protect your rights on roads dominated by angry drivers that hate anything but angry drivers, and are angry for it.
According to the conversation Kevin has with a pedestrian at the end, the car came to within inches of Kevin's rear tyre.