In most states it is legal to take a photograph of a car or driver involved in a wreck, as photos could be evidence of the damages if a lawsuit is later filed. Of course, there are limits, and it is illegal to trespass on private property to get photos, and may be illegal to invade someone's privacy, for example by spying through their curtains to get photos inside their home. She did technically commit a the tort of "battery" by stepping on your feet, but I would not encourage you to pursue...