[JRTJH]

Whatever you choose to do, remember that the door is a Styrofoam sandwich between two VERY THIN strips of outer material. The door will NOT survive any "brute force" to open the lock. So, be gentle on how much force you apply to the lock, you'll "grow your damage" significantly if you try the "get a bigger hammer" approach.

If you haven't already done so, try each of the keys you have for the door. Sometimes a key is cut "slightly off" from the original (even if they are both OEM keys) and one will work while the other won't unlock the cylinder...

A locksmith can get you in if there isn't a handy window or hatch that works.