Whenever you squash a community of cockroaches, they tend to scatter and infest nearby communities.
It is nearly always a much better strategy for them to have their “safe space” so they can be more easily identified and de-converted. Being able to pick off the lightly/conveniently indoctrinated is extremely helpful, as it prevents them from being radicalized like a wholesale community squashing will do.
I guess the Omak, WA store didn’t get that particular memo. I did see another guy with a piece on his belt during that same visit, but this dude is the one we got into close proximity to. Scared the bejesus out of my wife, who has never gotten close to any firearm except for those carried by the RCMP.