I don't believe the baggage office will accept luggage for storage.
If you forget to take your luggage in ZRH it will be circling for a while, then it will be taken to the baggage office. If you then later remember that you actually had luggage you need to go to the baggage office (it is close to the luggage belts), explain your mishap and get the luggage. Not sure how you get to the office (you need to go backwards thru customs), but there must be a way.