Some years ago I was staying at an RV park in Elk City, OK. The owner of an RV right across from me kept his dog tied to his rig. He/she would leave the animal tied there day and night while they went elsewhere (I suppose a friend or neighbor looked after it while they were gone).
I had no objections during the day because I was usually elsewhere but at night the animal would carry on with barking and whimpering. Since the managers weren't available late at night I had no recourse but to call the local police and complain. A day or two later, the offending RV was gone.
I generally have a lot of tolerance, but there are occasions where I need to act. I wondered how many other RVers nearby were also annoyed and if they complained, did anyone listen? Anyhow, maybe next time those dog owners set up in a park they'll be more inclined to do something with their dog.