The homeowners association for the neighborhood has bylaws that prohibit the parking of commercial vehicles overnight. However multiple residents have been parking commercial trucks here, most of them with company markings or logos. Even with certified letters sent with copies of the bylaws, the offending drivers continue to park these vehicles in violation of the guidelines. The local police department says there is nothing they can do because it is considered a civil dispute on private property. Is this correct? What more can be done about these trucks?