I had to do the same thing a few years ago with some hyper-aggressive douche, in broad daylight! "Swivel""Swivel" .. I also tried to stay near him, so I hopefully could watch the cops catch up and BF the shit-stain right in front of me,... He got even more stupid, and slowed way way down, sped up, back down, trying to goad me and get behind me,... nearly caused accidents twice! And he saw me on the phone,...hindsight, not a good idea to follow,... 911 said the same thing! The fuck finally bailed off on an exit-- he knew he was ratted!! 