keys locked in car...

well ok... i am not allowed to touch his car and its just sitting in the garage so i wanted to go in it and i found the keys...i got in... then i have them in the ignition.... then i heard my dads car pull up si i just locked the door and got out getting over excited, no i cant fess up... my dads a prick and would probably hit me if i did and ive already been in **** for bugging him about that car..... so as a last resort... call a towing company? http://freewebs.com/n00b_illion/duster.jpg thats the car :)