Hmm, interesting idea. I may even try it at the diner where I eat about 16 meals a day, along with 3/4 of the local police establishment from meal to meal.
As I usually wear my concealed Walther on a belt holster under a vest, I rarely take the holster off the belt so many times I'm wearing a small, black holster with no weapon visible.
On Friday, one of the local coppers jokingly asked me "Where my gun was?" after seeing the holster. I told him it was in my pocket, where the law says it's supposed to be.
He just said "Ah! Good idea" and left it at that. As I see these guys almost every day and they know I used to be in law enforcement (city copper and later on a Fed) they give me a small ration of grief from time to time. Nothing serious, just good natured ribbing I guess.
So, let's us know how the new holster works out. Sounds like a good plan to test out.