You could try an tow service, and see if they can unlock
the door with a Slim Jim. Does your key work in the lock?
(turn) or is your key no good for that door? If the key is
no good, a locksmith can file a key to open the door.
If the inner unlock rods have come off the lock mechanism,
you might be in for a fight, you may be able to roll down the
window to get a better look at what's wrong, but if the door
can't be opened, I fear you are going to have to destroy the
door pannel to gain access to the doors inner mechanisms.
Good Luck
Wild