My car is at the convenience store right now!! My alarm won't shut off, and I can't start the car with it set. The light on my keyless entry pad works, but I can't disable the alarm. Please help me! I don't know what to do! I can unlock the door using the keys, but as soon as I open the door the alarm sounds. It shuts off after a few minutes, but I can't start the car. Any advice?