I think you did the right thing - once my dad and I were taking the cat to the vet, and we saw a car pulled over and a woman struggling to get out of it. Daddy pulled over, stuck his arm out the window with the cell phone (in the days when cell phones were enormous and hard to miss)and hollered, "Miss, do you want me to call the police for you?"

The woman got away from the car and ran up to us, and we gave her a ride up to the vet's.

I never did hear what was going on, but I hope she's okay now, too.