I once had a road rage incident when I was driving a car and some idiot took exception to me overtaking him from a set of lights on a dual carriage way.
He followed me for about 5 miles nearly hitting me a few times, and I just took different directions in the hope he would get bored and go the way he wanted to go. Eventually dialled 999 and the cops were very helpful and told me how to get to the nearest Police station. In the end the guy just disappeared.
I got 2 further phone calls back from the Police, the first to say that I had indirectly driven near to where the guy lived, and that they were going round to have a chat with him.
Second telephone call they asked me for a very clear description of the guy, which unfortunately I could not give as I was too busy trying not to be driven off the road.
The copper actually was dissapointed that I couldnt give a full description. He said that the car was registered to a female only, and her husband had been banned from driving!