I think you are worrying too much. Once the gun warms up to room temperature the condensation will evaporate. I would clean and lube the gun weekly and cycle the ammo seasonally.
The only gun I have ever seen with a cold weather problem was my M-16 in the Army, in Germany, in the snow and cold 30 years ago. It was a one time occurrence that the bolt stuck back the first time I fired it, a smacked the stock and all was good.
My rifle and pistol are tools, I am the weapon.