To promote travel, tourism, workforce and economic development, and overall livability of the state, the director may expend money appropriated by the legislature for these purposes in the same manner as private persons, firms, corporations, and associations make expenditures for these purposes. Policies on promotional expenses must be approved by the commissioner of administration. A policy for expenditures on food, lodging, and travel must be approved by the commissioner of management and budget. No money may be expended for the appearance in radio or television broadcasts by an elected public official.