After paying for work done on my truck at A TA they gave me an air freshener that had A $20.00 coupon for my next service. I hung it in front of the air duct and while driving down the road I smelt something awful thinking it was A dead skunk on the road I ignored it but it didn't go away. I pulled over then started searching the cab and sleaper for spoilled food or old sox and found nothing. Then I saw it flapping in the breeze the air freshener from TA THATS WHAT IT WAS! I threw it out the window went back down the road with windows and vents open the truck aired out in no time. If they give you an air freshener DO NOT OPEN IT!! Leave it in the bag when you need to use the $20.00 coupon just hand them the air freshener still in it's sealed bag.