If there unopened you shouldn't have an issue if he paid with a card they can pull up the purchase at most stores but you should call and asked to speak to a manager abs Mahe sure if your don't want to waste a trip
I have and they exchanged it no problem. I did have the receipt though
I know nowadays certain stores like Walmart and target probably even wegmans.. they can look up your purchase just from your card so if you loss receipt or throw away, no worries.. guess it just depends on store.
The sooner the better tho
If they are unopened, they might take them back and exchange them. But you should still probably call and ask the store policy