I was going to lunch today, drove to subway with the windows down "its like 80 outside today" I get back and decide to sit in the car and eat. So I turn on the AC and its just blowing air, I'm think It needs to be recharged? so I run over to Napa to see how much a recharge kit cost. I get back and shut my car off, As soon as I get out the car starts to over heat. its flowing out of the over flow tank. Any ideas? I made sure there wasnt any leaks on the intake?