Can you help me with the following regarding anger?

Don't worry about the incident if nothing bad happened to either of you. What would have you done with his vehicle registration? Hunted him down and killed him? Reported him to the police for speeding? I really don't think that they would care that you were ped by one person on a road. The best thing to do would be to just take your mind off of it with thoughts of how fortunate you are that you didn't mess up the situation by rear ending him or something idiotic like that, and also that you were safe from harm.