If someone went up to me and "made their concerns known", I think I'd likely just walk away. It's the best way to defuse the situation.
Also not sure why you assumed there was any situation to be "defused". Weird. I guess you may be the type I referred to in my last paragraph
If you know you're just going to remain in disagreement, then hell yes. It's not worth the conflict. Now, if they could point to a law I was breaking, then maybe I'd entertain them for a minute, but this is not that.