Ok, elephant in the room here... Have you removed that Philips screw that is what actually looks to be holding the door? Odds are the lock cam has been removed years ago.
Ok, elephant in the room here... Have you removed that Philips screw that is what actually looks to be holding the door? Odds are the lock cam has been removed years ago.
Cheap tube locks can sometimes be defeated with a bic-pen, if you want to get fancy (and have $50 to blow) you can buy a tube-lock pick which are incredibly easy to use.
But yeah I'd bet that screw is doing more than the lock at this point.
EDIT: looks like tstone beat me to the bic-pen trick