I'm all down for a community based event. I too have seen the videos on YouTube. New Hampshire and California especially (though, in The Peoples Republic of Kalifornia, I think they need to have their firearms unloaded, in the holster).
However, it can be an issue in some towns.
I think Hartford still has their gun ban in public parks policy. Even though they are safety nets for those that want to commit acts of violence. As a resident there for 30 plus years, I never saw the gangs stop and say "wait, I can't go there, there is a gun ban there!".
Could be interesting though.