Recently, I had a standard flush done on my truck's AC system. Now, when the AC's off, even if it's not particularly warm out, and the truck's not warm, and the dial's all the way over to "as cold as it can" if I turn the fans on we'll get warm/heated air out of the vents. This didn't happen before it went into the shop. Other work was done at the same time, but afaik it wouldn't have affected the AC/heat (tie rods, ball joints).
Is it possible they screwed something up? What? These are Daimler Chrysler folk, more used to Jeeps, as they're Australian and Dakotas aren't made here.
I like the shop, and don't want to go in with this unless there's a real possibility they've made a mistake.