So was it like, the tag on the shelf said unsliced but the actual bread inside the bag was cut? Or did the bag itself have 'unsliced' printed right on it? That's a weird little mix-up.
Wait, that makes me wonder if it's a printing error on the packaging itself. Like the outer plastic bag says "unsliced" but the inner bread tag or the actual loaf is sliced. I've seen weird stuff like grabbing a bag labeled "plain" that clearly has garlic butter swirls in it. Or a cereal box for flakes that actually has clusters inside. These factory mix-ups seem to happen more than you'd expect.