I'm scheduled to get Modesta ceramic coating applied at Chicago Auto Pros this week. They asked if I wanted to have it applied to the windshield and windows too. They said it could make the windshield wipers jump a little bit (which could be temporary until the wipers aged) but that the coating would help with water beading etc. Has anyone done this and regretted it? Or have you found it helpful? Does it actually protect the glass? Or does this just sound like a bad idea?