Believe it or not I had a similar, if not stranger thing happen to me yesterday. I was in the store and it well stocked with paper towels, toilet paper, hand sanitizer, disinfecting wipes, etc. There were signs everywhere saying one item per customer. I put one package of TP and one package of paper towels in my cart and went on about my shopping.
When I was checking out, however, the kid told me that I could only buy one paper product, TP or paper towels, but not both.
Unbelievable!