Damn, my friends usually insist on driving me home if needed...

think there is no reasoning for her not to have done it... saying things like someone else can drive, you could've done this or that.. doesnt change it around, she was rude.
it was your birthday and it should have been about you.
friends are people you are supposed to trust regardless... you treat people the way you wanted be treated, so who ever like to have a planned birthday then have a friend ruining your day over not wanting to drive you home...
she just wanted to party that is it.. spending 30 mintues in the car with a friend can be tons of fun...
just ignore her, she is not worth the time more.