This moisture will develop in your engine, transmission, exhaust, etc. if you just start the car and let it idle for a little while. So, I'm of the school which does not start the car. For several reasons you really should remove the battery from the car. Usually the car is stored in an unheated garage. The cold will do a number on discharging the battery and killing it.
Some people leave the battery in the car and plug in a trickle charger.
I prefer to remove the battery completely and store it inside the house in reasonably warm place. But not a hot place. Don't store the battery on concrete. That will discharge it. Put a block of wood underneath it.