Maybe you could return them to Walmart...sounds like the cashier didn't give that bag to the customer and then added your stuff to it. Has happened to me before.
I've had that happen to me before. Just return them, someone will realize they didn't get their pics and return to the store.
I'm not heading back to Wal-Mart again any time soon. I noticed a sticker on the back with the person's name and number. I left a message. If they don't call me back I'll bring them back to Wal-Mart as soon as I can.
