Yes. They make you sign a form saying "Not bought in this shop". Honestly.
You do feel a bit dirty going into the shop though. Two years ago I think it was £10 or £12 for a number & name. At that time, the only other shop that could do the SPFL font & numbers was Greaves, who wanted £18 or £20.
Overall, it seems an obvious gap in the TTL offering, given the issue is usually finding someone with the machine to do the printing. Plus, TTL must do the correct printing for Thistle, unless AA takes a job lot to the C-shop as well.