Per a friend that is a Manager at a Wal Mart that would get said Associate fired, its againist Wal Mart policy to save any item for themselves or friends.
It may be against their "Official Policy", but I can personally say that Wally World does not give a crap. I have collected Hot Wheels cars for many years and it has been a common problem at virtually every store for the employees in the toy department to pull the Treasure Hunt cars for themselves or a friend before they make it to the shelves. I, along with numerous friends, have called Bentonville about this happening. Their response to me was that they are in the business to sell goods, and they dont care who they sell them to.