good thing you were not mobbed.

in Japan, nobody would help you after a road accident for fear of harming the victim further and for avoiding the hassle of being accused.

though you've made a saintly gesture, you have put yourself in harm's way.

also, only medical personnel are allowed to touch, move or save trauma victims.

the best one could do under similar circumstances would be to drive-by away from the victim then have your companion call the medics.