There is a way to resolve things without the heavy hand of law enforcement/courts/the state, but it requires those options as a backdrop: 1. You have a convers

There is a way to resolve things without the heavy hand of law enforcement/courts/the state, but it requires those options as a backdrop: 1. You have a conversation and politely ask as a neighbor. Maybe mention it a couple times to make sure the point gets across. 2. If that doesn't work, you research the regulation and have a second conversation explaining the issue in legal terms instead of neighborly terms. 3. If that doesn't work, you have a conversation and leave a note explaining that you don't want to cause trouble but that you will report to the city. 4. If that doesn't work, you -- at last -- get the city involved. Without regulation, step 3 has no teeth. And you only get to step 3 if steps 1-2 fail, so the premise here is that simply asking isn't going to help anyways. Most legal disputes can be handled amicably without getting the state or courts involved when it's clear who is in the right. But the law has to exist first, or else the abusive/negligent party will just continue to ignore the situation.