An owner shall display or store the tobacco product or electronic cigarette in a manner which by the design demonstrates the owner's intent that the tobacco product or electronic cigarette is inaccessible to the buyer without the intervention of the owner or the owner's agent. Designs that demonstrate an intent that the tobacco product or electronic cigarette is inaccessible to the buyer without the intervention of the owner or the owner's agent shall include storing or displaying the tobacco product or electronic cigarette as follows: Behind the sales counter in a manner which places the tobacco product or electronic cigarette beyond the physical reach of the buyer in the absence of extraordinary extension beyond the sales counter; or In a display case which requires seller assistance to gain access to the tobacco product or electronic cigarette contained therein; or In an overhead merchandising rack that is mounted more than six feet above the floor at the lowest point and from which access to the tobacco product or electronic cigarette is provided only on the side facing away from the buyer; or In any place that is inaccessible to buyers of the tobacco product or electronic cigarette without the intervention of the owner or the owner's agent.