Nothing in s. 561.42 or any other provision of the Beverage Law shall prohibit a distributor of beer or malt beverages from providing in-store servicing of beer or malt beverages. “In-store servicing” as used herein means quality control procedures which include, but are not limited to: rotation of malt beverages on the vendor’s shelves, rotation and placing of malt beverages in vendor’s coolers, proper stacking and maintenance of appearance and display of malt beverages on vendor’s shelves, price-stamping of malt beverages in vendor’s licensed premises, and moving or resetting any product or display in order to display a distributor’s own product when authorized by the vendor.