I took my GS 350 in for 5k service. Tried to have the dealer clean the cyrstalline looking specs off of the windows. Shop Foreman said the windows were pitted. Told him highly unlikely that all of the windows would be pitted from some dust storm. He said I'd have to take back to selling dealer. Specs are most visable when the sun is low and directly ahead (or behind when looking through rear window). I've tried everything including clay to remove. I can see with or without polarized sunglasses. Has anyone experienced this?