Record it. Preferably with video showing the frequency, date, and time. Now send the recording to the county commissioners or whatever type of local government is present, including a description of the issue and a tag line along the lines of "This is what your taxpayer dollars are supporting."
If that does not work or receives no reply, then email it to the local newspaper(s), TV news stations, etc.; with a common carry to the government addresses you tried, too. ;)