Sorry to revive an old post but I visited CMH a couple of weeks and, when traveling through the lower level walkway from the parking garage into the terminal, I exited the elevators and took a short walk (inside) before I reached the automated doors allowing entrance into the terminal area. After we went through my son-in-law asked (discretely) if I was legal. I wondered, at the time, why he would suddenly ask but i went on my way.
About a week later we returned and traversed the same route... this time I actually LOOKED for any "notifications" on or around the doorway. Sure enough, there was a sticker indicating that guns were prohibited in the terminal. I didn't grab a picture of it (and maybe I should have but I didnt want "proof that I had seen it" actually on my person if I was asked
). I was still confident (because of this board) that I was legal but didnt want Barney Fife messing with my evening plans with my granddaughter.