You may get farther if you can talk to his landlord or manager. Calling the police is rarely effective, except being able to tell the landlord that the police are regularly being called on their problem tenant.
Another option might be to complain to the Homeowner's Association.
If none of that does any good, what time do you get up? What time do they get up? You could start blasting your stereo early in the morning LOL.
Or, buy him some headphones?
If you just have to endure him until you move, try using a huge fan for white noise. That's what I do. This is the fan I have:
Fans