All businesses and services shall be conducted entirely within a completely enclosed structure, except for conditional uses, outdoor dining areas, seasonal sales lots, outdoor equipment, outdoor furniture, dispensers, boat storage and maintenance/service, and bus stations. In addition, temporary sales of products allowed either as an outright permitted or a conditionally permitted use, for not more than seven consecutive days, may be conducted outside on private property. These sales may occur no more than four times during a calendar year. The seller must have a current business license and required parking spaces must remain available for use by vehicles.