Best Buy has an option of buying something online, and picking it up within hours at a local retail store. Microcenter also has this, as does Apple, and most likely a few other Brick and Mortar stores
They pull it, and you pick it up at the counter.
Now, it's possible that this will not be an option with the iPad, for whatever reason, but it is an option for other things
I know all this, because I've done it myself many times. Best Buy tells you to wait for an email letting you know the item is ready for pickup. These emails usually take a few hours (during business hours), for you to receive them after you pay online.
They pull it, and you pick it up at the counter.
Now, it's possible that this will not be an option with the iPad, for whatever reason, but it is an option for other things
I know all this, because I've done it myself many times. Best Buy tells you to wait for an email letting you know the item is ready for pickup. These emails usually take a few hours (during business hours), for you to receive them after you pay online.