Notwithstanding subsection C of Section 2.30.090, a retail customer of a business entity engaged in retail sales of goods or services to the public generally is not a source of income to an official who owns a ten percent or greater interest in the entity if the retail customers of the business entity constitute a significant segment of the public generally, and the amount of income received by the business entity from the customers is not distinguishable from the amount of income received from its other retail customers. (Ord. 439 §2, 1999).