would be incorrect and silly. Not only is that NOT corporate policy, it doesn't make sense.

In my particular instance, it was a coupon for BOGO. Clearly it is going to beep as you have to insert the price and/or adjust. In addition, some coupons are made to beep everytime, no matter what. It doesn't mean it is invalid. It means they (meaning corporate) want you to look at the coupon and verify it is being used correctly. For a more indepth understanding of this, google "coupon 992".

As for customers wiping out your shelves, putting a limit in place will prevent that. I'm not sure if you are a cashier or a manager. Being a cashier, setting limits on items is above your pay grade, sorry. If you are a manager, I am sure you understand that the sales ad most likely had a limit stated. In the absence of a limit, the law would not allow you to arbitrarily put limits on it. If you want to limit items by putting limits on the coupons, I guess that is your choice. Obviously, CVS does NOT have a coupon policy, so it's left up to the managers mood that day.

I'm not sure what you mean by eccentric couponers. I would find it "odd" for a person to go to your store determined to pay over $5 for a stick of deodorant.