I agree with V. Sometimes it's not your karma at work, it's the other person's. If it were me, I'd have been bawling as much for the fact that people like that exist, as for the physical pain.

It sounds as if you handled it very well, though, taking the time to breathe and check yourself out. I'm so glad that the ignoramus didn't bean you in the head or knock you off your bike! Definitely take it easy tomorrow, and let us know how you're feeling after you get some rest.