Just a bit of safety advice: If you are ever driving alone and someone in an umarked car tries to pull you over, DO NOT pull over. Instead, put on your hazards and drive slowly to a populated area. If it is a real cop, he will understand that you don't want to risk putting yourself in danger. I don't know the statistics, but I know that impersonating a police officer is a common ploy for those who prey on women. Also, any woman who does not have a cell phone should really consider getting one in case of emergencies.
It seems like the whole world is going crazy right now, with the murders at LSU, those kidnappings in California, and there was just a double rape here in Philadelphia.

It's really scary.