Got a kick out of your air hammer example because I happen to be working on a project that involves me using an air hammer (among other loud pneumatic tools) on many weeknights. The key was I actually took the time before starting to gasp sit down and talk to my neighbors and agree on things like noise level, hours I’d be working, keeping the garage door shut, etc. Lucked out by having reasonable neighbors, but you can usually head off trouble by talking with people as if they were grown adults. Ended up costing me nothing but a new quieter air compressor, and no visits from the city yet.