This may be a dumb questin but whatever. I have been known to leave my camera bag in my car overnight when the temp gets down into the 20's. If this is done repeatedly, can there be any permanant damage done to any of my equpiment. I do think about when it gets down into the single digits for sure and bring it in, but if i don't get the o **** factor when I step out of my truck i usaully forget about my camera. Am I tempting fate?