That ain't a crack, I had a crack(s) in my windshield for years, and the winters of east Idaho and Interior Alaska didn't do me any favors, but won't be as bad as you seem to imagine it will be. I took a hit from a passing car in Alaska back in 2009 near the base of the glass, just like yours, and in the ensuning years spread across the entire base of the glass. On a winter trip over the Alaskan Highway two years ago I took a rock that left concentric rings in the glass. Then a cold puddle of water on a sunny day last spring made it crack right up the middle. Then I decided to finally replace it. Now this new one has a crack, oh well, it'll stay there, it don't bother me. If I replaced my windshield every time it cracked, I'd go through at least two a year.