That would be the best bet! Put the boat in the garage....lol. I'm in south arkansas and most winters aren't to bad...but we still get busted lower units and blocks. The main thing is getting all the water out. You can find seafoam at walmart or napa or orielys and such around here. In red and white can. You can get seafoam deep creep and fog the engine with it.
"But if serving the Lord seems undesirable to you, then choose for yourselves this day whom you will serve, whether the gods your ancestors served beyond the Euphrates, or the gods of the Amorites, in whose land you are living. But as for me and my household, we will serve the Lord.” Joshua 25:15