561.421  Temporary convention permits.--In convention halls, coliseums, and similar type buildings where there is an existing beverage license, upon the approval of the incorporated city, town, or board of county commissioners, the director may, in his or her discretion, issue a permit for not more than 5 calendar days for the display by manufacturers or distributors of products licensed under the Beverage Law; and may authorize consumption of such beverages on the premises only.