Outdoor Storage and Display. Outdoor storage and display is prohibited for all nonresidential development in all Residential zone districts, and in the CNO and CO zone districts. Outdoor display of products for sale or rent shall be allowed in the CMU, CN-1, CN-2, and CCBD zone districts, provided that such display is accessory to an indoor primary use on the property, is not located in the public right-of-way, does not block sidewalks, parking areas, or driveways, and is maintained in a neat and orderly manner. Outdoor storage of supplies, materials, and equipment not for sale or rent, with the exception of vehicles associated with the allowed use on the site, shall not be permitted in the CMU, CN-1, CN-2, and CCBD zone districts.