This is much ado about nothing. All they are asking is that people don't open carry, since it has a tendency to scare the sheeple who have been conditioned to believe that anyone other than a cop with a gun is going to kill them. Which could potentially hurt their business. Read the letter; it's pretty much "we ask you not to carry, but, wink wink, nudge nudge, we really don't mind if you keep it out of sight". Open carry in most circumstances is, I believe, foolish anyway.