get to see a doc dude, accident consultations are free anyways no ? (well at least here they are)

if not, campus med center is the best, you normally pay for a a couple visit worth on your semester bill (obligatory insurance policy)

as for the bike, think about it after beeing sure your body is safe and sound.
lil advice i am giving you. I fell from a bar stool at home (cat ran between my legs when stepping up) and I have had wrist problems from this ever since, and you got hit by a car so it could be worse but comming up later!