This Chapter shall not apply to any vehicle or parts thereof which is completely enclosed within a building consisting of four (4) walls and roof in a lawful manner, where such vehicle is not visible from the street or other public or private property or a vehicle or parts thereof which is stored or parked in a lawful manner on property used in connection with the business of a licensed dismantler, garage, vehicle dealer or junkyard. This exception shall not authorize the maintenance of a public or private nuisance as defined under the provisions of law other than this Chapter.