Parking Deal UPDATED
So now I have the full details of the parking deal for Columbia football fans at the Edison ParkFast on West 212th Street and 10th Avenue:
You drop off your car, get a parking ticket as you would in any of their enclosed lots. When you enter the stadium, get your parking ticket validated at the Customer Service table on the inner concourse of the stadium. When you return to the lot with the validated ticket, you get the special event rate of $20.
That's not a bad price for parking in Manhattan for what could be a lot of hours.