A motorcyclist crashes on a freeway and is run over by other motorists

A motorcyclist loses control on a freeway slip road. His bike slips, he falls, and ends up sprawled on the ground in the middle of the lane. The scene is filmed by his helmet-mounted camera. A grey car comes up behind - probably a Camry - and just manages to avoid him, without hitting him. The biker escapes without being hit. He seems to have taken the angle as if he were on a racetrack, except that this is an open road.