Someone installed one of these at a shop in SFbay a couple years ago and I tracked it down, took an SPL recording snapshot, and emailed the city to report a violation of noise laws with the proof. The noisemaker was physically uninstalled after a few weeks and did not return. So, presumably Home Depot is violating LA Noise Ordinance, and could reasonably be expected to accrue fines or even forced to cease operating their retail business on that property, given a properly filed code violation report; and, since any persistent sound levels necessary to cause discomfort are almost certainly an OSHA violation, a side copy to the relevant Home Depot worker unions in LA/Cali/US might produce a rather significant result as well.