Holy cow! We had sleet and snow Monday night. Today I ran an errand and two huge sheets of ice came off the top of an oncoming car, went airborne and one of them came down on my windshield. It was at least 1/3 the size of the windshield and it sounded like a bomb went off when it hit. I expected all that glass and ice to end up in my face! But the windshield held. No visible signs of damage anywhere. Scared the daylights out of me! Clean off the tops of your cars people!!