The provisions of sections 21a-34 to 21a-45, inclusive, shall not apply to any person who manufactures packaged candy or chewing gum or to any vending machine, or the owner or operator thereof, which dispenses (1) premixed carbonated beverages sealed in individual or bulk containers; (2) pasteurized milk, as defined in section 22-127, which is dispensed in sealed containers; (3) any food or beverage in a hermetically sealed container; or (4) shell eggs as defined by and regulated under sections 22-40 to 22-45, inclusive.