I went through the registry and there is only one ('73 CSi) in Nashville, probably yours. However, I'm just down the road in Oak Ridge, TN. Within the state of TN there are 9 coupes registered but all but 3 are "advertised" cars which could be anywhere and one is parted known to be out. Besides yours and mine the other TN coupe is in storage in Memphis.
Brentwood
Bristol
Chattanooga
Jackson
Memphis
Memphis
Nashville
Oak Ridge
Seymour
Not sure this helps. PM me if there is anything I can help you with.