I avoid things like this. I use the drive thru.
Many years ago I was in the drive thru line at Der Weinerschnitzel in San Diego when a man opened my car door and sat down in the passenger seat. He proceeded to tell me about how he was a Christian who needed me to drive him to his car or something. He also mentioned he just got out of prison. Not sure what to do, I kept calm until I got up to the window when I asked the employee to call the police because this man was trying to rob me. That guy left my car immediately and vanished into the night.