Yes, that's problematic both from a legal standpoint and from a practical standpoint - they will be questioned aggressively if the admitting CBP officer sees th

Yes, that's problematic both from a legal standpoint and from a practical standpoint - they will be questioned aggressively if the admitting CBP officer sees that they are carrying a product. But this still could work because the concerns and restrictions are less when a product is manufactured abroad. They can't be coming to the U.S. to make sales but they could be coming to the U.S. to deliver products made from abroad and already purchased.