No sale of intoxicating liquor shall be made to or in guest rooms of hotels, unless the rules of such hotel provide for the service of meals in guest rooms; nor unless the sale of such intoxicating liquor is made in the manner on-sales are required to be made; nor unless such sale accompanies and is incident to the regular service of meals to guests therein; nor unless the rules of such hotel and the description, location and number of such guest rooms are fully set out in the application for a license.
('69 Code, § 4.40, Subd. 13) Penalty, see § 10.99