I had no problem with neighbors(yet??) But my own wife did let me know how noisy & smelly the work was. Go figgure!
Anyway I gradually switched over to electric tools , still noisy but maybe half that of air tools, still use the cut off wheel, can't get by without that.
handle it with kid gloves, once the town gets involved it's usually a loosing battle.
You can always work nonstop & finish it before the cops pull up & say, What noise?
Good luck, Rich.