I know this question is pretty open, but has anyone just had their air conditioner stop blowing cold air? I was driving a couple days ago in the morning and the air conditioning was working fine blowing cold air. I went home for literally 5 minutes. When I came back out and left again, the air was no longer blowing cold. There was no sign of the air gradually getting warmer at any point. Car has 122,000 miles. Of course, any shop is at least 10 days out before looking into anything hvac related.