content: If I was that driver then I would have noticed the other car break lights go on through the windshield and slowed down to keep a safe distance.  If I was the driver then I would also have taken into account  traffic that is behind me and I would have touched my break lights to signal the ones behind me that I "may" break. So they are prepared to and don't slam into me.    Hitting the breaks to come to a complete stop is not safe on a highway. The car that follows you may kill you because it cannot break that fast of a Tesla.