In Texas we “used” to be required by law to “inform” the officer that we are carrying a firearm under the provisions of the Texas CHL law...
IIRC, we got the penalties for “not” informaing to not be as severe for failing to do so...That happened back in the 2009 legistlative session...You had the option to inform “verbally” or by handing them your CHL license, that was considered enough of a notification...But all of that was in the case of “official” business, i.e traffic stop, investigations, etc etc...
I would never let anyone know I was carrying, with some arbitrary sticker or logo that was designed to let someone know the person of that vehicle might be carrying a firearm...
What difference does it make to you if you saw me driving around and weren’t sure if I was carrying a firearm in the vehicle with me???
You could maybe solve your nervousness by qualifying for the Tennessee carry permit...But if you do, don’t advertise the fact that you do so...
I’m not a police officer and don’t plan on making any traffic stops so it’s a moot point for me.