My father had one of his cars stored for the winter and recently uncovered it now that the weather is getting warmer. This is the only one of his cars with a clear bra on it and over the winter all of the film developed a white haze. The car was kept in a temperature controlled garage with a car cover (manufacturer supplied) all winter. Any idea why the film hazed up? How should it be treated to get it back to clear? Can you use a polish like Menz IP on clear bra material? He's not pleased (understandably). This car is one of his babies. He is an avid Zaino user and said that a quick coat of Z2 helped "a little". Ugh. Please help! Thanks.