How do I contact the actual owner with customer service feedback without going through the rude cashier who claims to own the place?

FireBird Nashville Hot Chicken is the sister restaurant of Down N’ Dirty Seafood Boil, maybe call them and ask.

Possibly through the city. They have to have a business license stating who the owner is. Sorry to hear about your experience.

The Owner is usually there- I usually over look the lack of good customer service as long as the chicken is bangin- and in this case it is Firebird- add ranch and a sprinkle of customer service to the menu