I have a heated shop, but the wife parks her truck in there so she has a warm vehicle to get in to when she goes to work. lots of snow melt off, so high humidity is present. some, not all tools have some rust on them, even though i have an exhaust fan present. i have another, unheated shop. where would be the best place to keep my baby during the winter months? which is the lesser of the two evils - the humidity or the cold?