A little more background.
I am guessing this response from LCNB is in regards to posted gun buster signs.
Without your letter it's hard to develop a proper response. But, it sounds that the president of the bank does not understand that persons that have CC licenses have training as it relates to engagement. And that the Gun Buster signs are an invitation to the bad guy.
It sounds like you have an opportunity at attempting to convince the bank to change their outlook. Lets not screw it up. I think when there is even a stalemate it's better to walk away with class.