It's common to be asked when and where you packed the luggage. If you say you packed at your hotel, you will often be asked what hotel. From there, a couple times I was asked if I had any proof that I had stayed at that particular hotel. The question leading to the request to verify the hotel could also have come from a question about whether anyone has given you something, where I sometimes need to respond that I've received some gift from the hotel, such as a book or an unopened box of candy. YMMV.