I have a Kryptonite Flex Security lock, its a braided steel lock with a yellow built in lock in the head. Recently it was freakin cold (I live in Buffalo,NY) and my key snapped in the damn built in lock. I tried to turn the key even more and it snapped into a worthless piece of metal. I was so pissed off and I took a hammer and kind of mutilated the lock head. How do I open it? I have to use my bike for everyday use. I only have a small hatchet, hammer, etc regular household tools.