You can mention it, but don't go expecting anyone to do anything... some places will, while others don't - when we went of rour anniversary to the WL in 2000, it was noted in our reservations, and nothing was done... but in 1996 when we went, we had balloons, a basket and a card.
If you go in not expecting anything then you'll be plesantly surprised if anything is done, and not disappointed if nothing is...