It’s a stupid law. I was general manager of a retail store when they enacted this law and it was a mess. People were taking our stickers and labels off and trying to put them on other products to try and get them free or $10 off. Wasted so much time adjudicating what was a legitimate scanning error and what was nefarious. I don’t disagree with the ethos of the law but it needs tweaking. Shit happens, tags fall off, items get missed in batches of price changes. Fortunately most people don’t know or care about this law.