Very fishy! You did the correct thing. Never get out of your vehicle. I would have called the police right then.
I read your "answer"---your instincts as to what to do in this situation were excellent.
Even if he were seriously hurt, getting out of your car in such a situation would have been your taking an unacceptable risk---especially considering how many people depend on you.
Next time, just call the police, describe what the situation is, and let the dispatcher send the police and an ambulance.
Let the professionals do the "protect and serve" thing. If the guy was on the level, he wouldn't have minded---and if he wasn't, he wouldn't have left.
Wow that's way too creepy ,You did the right thing, always trust your instincts and in this case your instincts told you something wasn't right. That whole scenario you just described gives me goosebumps, I'm so glad you went with your gut and didn't trust those creeps.
That you remained safe speaks to the wisdom of your decisions.
If you are not a trained responder, never get out of your car in roadside incidents. Especially alone. Ever. Unless your car is on fire. Police would tell you the same.
To me, you are to be commended for your thoughtful choices.