(1) A banquet permit does not authorize the sale of liquor for cash, credit, check, scrip, or in any manner whatever: Provided, however, That the cost of the occasion to those attending, if any, may be included in the total price for the banquet, in which event, to assure participants receiving an equal share, an allocation based upon a distribution of tickets exchangeable for drinks as a part of the package price is permissible.

(2) The prohibition provided for in subsection (1) of this section extends to the sale of mixers, ice, or "set-ups" if the prices charged therefor are unrelated to the cost of such goods and/or services and approximate what the charge for a drink containing liquor would be.

(3) Liquor cannot be raffled off or offered as a prize at an event for which a banquet permit has been issued. (Such disposition would constitute a "sale" of liquor as that term is defined in RCW 66.04.010(27).)