I personally see it as a racing challenge. Try to pass him, if not, learn his moves and pass later. If he slows me down, so what, I drive defensively now, again, a racing challenge. We are all here for fun, no need to make other ppl swear at u.
Also, if he is bit reluctante after a while, I will use the horn and flash my light, thats what they are in the game for....Not that I use them often...