So I've been stuck in this mess in Atlanta for a week now. Today, I finally got back on the road and all this salt is on my windshield. I just tried wiping them down with the windshield washer fluid, but nothing came out when I pulled back the lever. I had the fluid replaced at my last service and I barely use the stuff, so surely it can't be out. I'm guessing it froze (temperatures for the week have been under freezing until today). Is that even possible though? I thought windshield washer fluid has a lower freezing point than water?