Ok quick question. Any gun-care related issues with leaving rifles/shotguns in a vehicle over night in cold temperatures? The reason I ask is I have a big road trip coming up. Point A to B, then to Point C a couple days later. Will be bringing 2 shotguns and 2 rifles with me. Will be driving ALL day (18 hours) from point A to B, staying over 2 nights at point B, and then leaving for point C in the morning of the 3rd day (2 hour drive). At point B the owner's of the house do not own firearms and although I'm sure they would allow me to bring them in, I know that they'd prefer not to have guns in the house. So I am wondering if any significant rust could occur from condensation by having the guns in a cold vehicle for almost 3 days straight or can I just leave them until I get to the final destination and take them inside, dry them, treat them etc.?