As someone who lived in Northern Virginia for a bit and knew some reenactors, I heard some interesting stories about how many issues it caused during the DC Sniper attacks https://en.wikipedia.org/wiki/D.C._sniper_attacks. Lotsa 911 calls when they would start firing, it took a while for them to be able to ease back into it.

Tangential, but still an interesting intersection of law enforcement vs free expression. Thankfully I think that all parties just politely agreed they should just stop while the suspects were still active and at large.