Sux, but no blood, no foul! I tend to beat on a fender or roof when they are that close, but that's just me!! If you'd had an air horn she'd probably messed her drawers -- bet she'll pay attention at that sign/light in the future and be scared to death of seeing you again! I have a driver in my office complex scared to death that mean old motorcyclist is going to get 'em -- that since a near miss in the lot a couple of weeks ago.
Hang tough!