From how I read it. It must be in your inventory to get the free use out of it. Once you select the free use, the item is consumed in exchange for the gil and then it is gone. Once it is consumed you are no longer in possession of this item.

Based on the description given, that's how I assume the item will work. So I see it as a One time use Teleport. I don't see it the same as a minion as they give you the power to summon minions when used. The whistles don't have to be in your possession.

The descriptions for all the minions say specifically, Use to acquire Minions. The wording is different enough to make a safe assumption. The ticket seems a lot like Fantasia and Phoenix Down to me. I don't put it past SE to do something like this, they may think its a good idea, but the fans won't always agree. Like OP asks, a Mod to clarify helps. Based on description, 1 time free Teleport is all it is.