People like that are what give cyclists a bad name. EVen you, a cyclist, was angry after what he did. Imagine a driver with less of a cyclist tolerance level. What's he going to do after dealing with "Darwin" and then maybe coming across some more conscientious riders? I think the driver's more likely to be a jerk to the good riders.

So moral of the story is, hit him next time and don't sweat it.

(Just kidding...)