So my wife borrows my car for a few days...I get it back and the AC is acting up...

ghead. It's real strange...it's still blowing real cold, but only blows on high regardless of the setting...it also stays on for about 10 seconds AFTER I shut it off completely...when I shut it off I can actually hear something closing inside the dash, and the AC finally shuts off, but I can still hear something blowing inside there. WTF!!! BTW, it is a digital climate control unit. Any one have any ideas on what is going on? Thanks as usual fellas!
Oh yeah, I know...What was I thinking letting her drive my car!!!!