I used the keypad to lock up the coach, now the entry door handle latch seems to have failed in the locked position and I can't get in.The keypad is locking and unlocking the bays, only the entry door is effected. I tried manually with the key but the tumbler is not turning fully to unlock. All windows are locked, it doesn't seem entering through one of them is an option. I don't think a locksmith is the answer either, I think something within the door latch system has come loose, jammed and/or failed. Any success stories on overcoming this problem?