Going back to the subject of noise, in Zona Colonial the residents got together and had a big war on noise. Result, the bars now largely behave themselves. The police make it clear that no noise will be tolerated from bars and even the Ayuntamiento is telling people that they cannot set up noisy bars. People keep commenting how peaceful it is at night. So it can be done. You need to get Dominicans as well as foreigners on your side, and you need to get the bars which are being responsible to work with you as well. It isn't easy, but is really worth doing. We're now starting to work on AMET and Cestur to get the loud vehicles stopped, and to try and designate certain roads as "hotel and residential" zones, where even car horns aren't tolerated. We have hundreds of police in the Colonial Zone, it's just a question of getting them to be on our side.
My advice is not to expect to make a quick phone call and get this sorted out. You need to get people together who are bothered about noise and start a campaign, form a group, have meetings with the bars, and the police, and the Anti Ruido people, and the church and so on and so on.