You know, with the police already on your side, I'd continue to be the nicest one in the neighbourhood. But stop giving them eggs, next thing they'll complain they are bad. You can win by being in compliance, which you are, and by not aggravating the police. These people have acted badly, and there is no need to have much more to do with them. Escalation will increase the odds, and they must have someone else to pester if you can keep cool. I'm sorry for your troubles- I know a neighbour like that, he pesters a poultry owner in compliance. He's going to be sorry, no one likes him and he may end up driven from the community, eventually.