Around two years ago I was up in MN on business, and stayed at a hotel in one of the suburbs just east of St. Paul.
I forget the wording, but the hotel's restaurant had a "No Guns" sign.
At breakfast the next morning (served in a meeting room, not the restaurant) I had an opportunity to speak to the hotel's manager, and told him how, when meeting up with colleagues the previous evening for dinner, we chose to go elsewhere because of this sign, and that I planned to stay elsewhere on my next trip. We had a pretty good discussion about CHLs being law abiding, bad guys ignoring signs, etc.
The sign was gone by that afternoon.
Next day, I thanked the manager for removing it, and told him I'd let my colleagues know and would not personally be blacklisting his hotel.
This was before MN decided to honor TX-CHLs, but I figure I struck my own small blow for RTC.