I suspect a 'snap' of road rage was behind this incident, and sheesh, what a way to get your name in the news (jerk).
Mind you, there was a 'test' of sorts done down FLA way, a few years ago, involving "turtles" just inside a driving lane, and then kept track of what happened next....
Most folks evaded the "turtle", and made effort to go around.... but a scant few targeted the "turtle", and flattened the S.O.B.: Death Race 2000 comes to mind.