Depends on local noise ordinances. Here in GA, the locals are complaining about Tannerite explosions. Our "Good Ole Boys" get really heavy-handed with it making exploding targets. Sometimes using all they have just to see and hear how big a BOOM they can make. But we also have the US Army's Fort Stewart ~30+ miles away which is the home base of a mechanized armor division. M1A1 Bradley tanks and motorized howitzers. And you can hear them at times when they are having target practice. And I am ~6 miles east of I-95 and you hear the traffic noise. Car radio noise does have a local ordinance against it and they will ticket you for too loud. We still hear them passing by on the road boomda boomety booming with their amped up woofers. Tannerite is legal and has no local ordinances against it so all the deputies do is ride out to find who is doing it and ask their old high school buddies to tone it down a bit and take a couple of shots while they are there just for the fun of it. But then I do live in a small rural county that doesn't even have a single stoplight in it.