When I drove my car today, I used the heater as normal (since it is -1 degree outside in NE), but when I shut my car off the heater didn't turn off. I can move the dial to off but it just keeps on blowing! It already drained my battery once so I jump started the car so I could try to figure out he problem. Anyone have any ideas on how to stop this problem or any quick fixes just to stop the batter from draining so I can take it to the dealer tomorrow?