"...Go to a resturant that delivers and order some food to get delivered at your house and bum a ride with the driver for an extra tip..."

Now THAT is an intersting idea. I suspect that most places would have a "no riders" policy, but it would be worth trying.

Re calling the police, I can just about guarantee you that all they might do would be to take you to a "place of safety," like an all night diner or something. They would politely (maybe) inform you that they are not a taxi...