Locktronics

I have a problem starting my 1997 cavelar I have locktronic alarm and it all of a sudden my wife backed in to our drive way and she went to shut it off and the car started to roll and then she could not start it again. even with the alarm key put in. Is there anyone out there that knows about this and what to do. I called the 800 number it suppose to be 1-800-759lock and it is not the number. It says it is on the sticker. We got this system 10 years ago when we bought the car.

Thank You,
Dennis Matyi