Well if the top isn't down You got a small problem!!! But you can Try calling a Local police and see if they have any officer with the window tool that will unlock it for you!! have done this and I called and they came and did it for me. then I learned to have three sets of keys and One with me one at home and one secured somewhere i will not disclose, but I do not have far to go to get them. However an added tip LEARN TO TAKE YOUR KEYS OUT BEFORE YOU UNFASTEN YOUR SAFETY BELT AND STICK THEM IN YOUR POCKET.Then undo your belt and go!!!
Ok if the doors are unlocked then just hit trunk release button which should be in glovebox or you could flip the backseat down and reach inside. If doors are locked then find some coat hanger and a few beers, its gonna be a while.