I did a stupid thing. I leaned on the door of my 1974 Coleman Valley Forge and accidentally pushed the latch closed. I have no key. How do I get it open? I have no tow package yet and the locksmith is in the next town. I really don't want to pay over $100 just to get a key. The good thing is that it's currently up and I can at least get in. Is there a "trick" I can use to get it open? Thanks!