In Minnesota they need to post a specific sign as required by statute or they can want and one hand and poop in the other and see which fills up first.
If they oppose open carry, I don’t know why they couldn’t just post a sign stating “NO OPEN WEAPONS CARRY ALLOWED”
I think that is also the case here in Tennessee (and probably most everywhere). If they don't, then their request is just that, merely a request.
When I see one of the signs, like at Mast General Store or Outback Steakhouse, I take my dollars elsewhere.
Bingo! Look, I can understand why some folks get all worked up about open carry. No one is more pro-2A than me, but if I'm in a store and people walk in with slung rifles, I'm going to get a little uncomfortable.
It's a natural reaction. Just like if a person in a store is openly examining a Hustler magazine (I've been told it has some raunchy content).
You've got a right to carry (2A), and a right to read Hustler (1A). But conceal the gun, and conceal the Hustler, when you're out in public.
And for what it's worth, I think most states have got it backwards. No license should be needed for concealed carry, but a license should be needed for open carry.