Notwithstanding any provision of the general statutes or any regulations issued pursuant thereto to the contrary, a wholesaler, who sells any product or is authorized to sell any product by this chapter, shall sell such product to each retail permittee in the wholesaler’s geographic territory who desires to purchase such product. Such wholesaler shall not charge any retail permittee, to whom the wholesaler is required to sell by virtue of this section, a different rate for the delivery or transportation of any alcoholic liquor than such wholesaler would charge any other retail permittee. Where distance, road conditions, travel time or any such factor substantially affects the cost of delivery or transportation of a product sold by a wholesaler, the wholesaler shall file a schedule of proposed delivery charges with the Department of Consumer Protection. Such schedule shall only apply after a hearing by and upon written approval from said department.