I don’t know if this will work, but I can pretty much guarantee you that if WalMart or Target put up these lamps in their stores, there’d be some cohort of folks claiming that they got skin cancer or vision problems or some other malady as result of UV lights shining on them.
Wal-Mart is using robots to go down the aisles and scan inventory. Seems they can be fitted with UV lamps to treat the shelves.