License plate coding in Manhattan?

I was sitting at the doctor’s office the other day and picked up a copy of US News and World Report. I found this article about Mayor Bloomberg’s proposed congestion pricing. What struck me was the possibility of implementing a system that’s already being used in the Philippines: prohibiting cars from being driven into the city on certain days. For example, cars with license plate sequences ending with the numeral 5, for example, would not be allowed to drive on days of the month ending with a 5. I wonder how this would go over with New Yorkers. I applaud the good mayor’s efforts to make NY a green city.