"It's an attack on my character, and it's very embarrassing, and an insult."

Said Al Argibay, a corrections officer, who got escorted out of his gym for grunting. He joined a no-grunting gym. End of story! The fact that you're a corrections officer -- "after serving your community as a corrections officer, the last thing I want is to be escorted out of the gym by the local authorities" -- doesn't matter. The fact that a no-grunting policy seems absurd... doesn't matter. You joined the no-grunting group. You have to play by the rules you agreed to and that the other members paid to benefit from. I'll bet in your corrections officer role you enforce some rules against people who find those rules absurd and whose objections you find laughably irrelevant.