Here you go.. A happy ending!
I just got off of the phone with the District Manager. It was, as I suspected, a misunderstanding by the store manager. He began working there about a year ago and was told that they couldn't fill tanks unless they were removed from the vehicle without being told the exception if they were permanently mounted RV tanks.
The District Manager consulted the employee manual that confirmed that it was permissible to fill RV tanks, then spoke with AmeriGas -- their suppler to confirm. AmeriGas will be sending one of their representatives to the store next week to make sure that the employees are properly trained in filling permanently mounted RV propane tanks.
Looks like it is a Win for everyone and the system worked like it was supposed to.
Kudos to Tractor Supply for their customer service. Please support the Brick and Mortars whenever possible!
Chris
