The best way to deal with the sheriff's failure to enforce county ordinances is to have a meeting with your county supervisor about the situation that you are confronting and the sheriff's failure to enforce the noise ordinance in your community with respect to the problem that you seem to have with your neighbor.In general to win a nuisance lawsuit against the noisy neighbor you need to prove that more likely than not the neighbor has violated county noise ordinance repeatedly and his continued violation serves no redeeming social benefit. I suggest that you consult with an attorney who practices governmental entity law to assist you concerning your situation.From what you have written I do not see a factual basis for bringing an action against the sheriff for not enforcing the noise ordinance.