The easiest way is to use a wedge and a slim jim...If you cant get to one of those, you could also call a ford dealer and tell them that you locked your keys in your car...Since the car is a 99 you could tell them the VIN and they could cut a key on the spot for you, the key would only open the door and it should be free and if not, it would be very cheap (2 bucks)...
