Is there anything the police would do?

As far as the music goes, call out an officer while they are jamming out. Have you ever considered walking over and talking with them?..Or are they not the type that can carry a conversation. You do have rights to live in a peaceful environment, you already had a complaint about your dogs and that is a nuisance hearing dogs barking half the night...I would talk to an officer and tell him what is going on, and what can you do about all the nuisances around you. If taking your dogs inside is an option, I would do that to avoid any more complaints.