Snow Storm Drivers

Today, as I drove to work in the slush and snow, I marveled at one particular inconsiderate snow storm driver. There are always the people who are too lazy to brush off their whole car, or perhaps too short to reach the roof of their massive SUV, but usually they just leave a massive pile on the roof of the car. This is of course dangerous and annoying, as it can easily slide down their back windshield or fly off of their roof onto your windshield as soon as they get above 30 mph. However, this morning I saw a car driving down the highway with an inch thick layer of snow on their back windshield. Really?