I once left my car at the airport for 2 weeks. I didn't realize at the time but I had parked right under a powerline that turned out to be the birds favorite resting area. My car was a hundred times worse than this one. It was all I could do to get the windshield clean enough to see out of. I used a just about a whole tank of washer fluid. When I drove it through the checkout line to pay for the parking the guy just about busted a gut laughing. I think that was the only time I ever went out of my way to go through a car wash at 11:30 at night.