Pick up Leopard at an Apple reseller?

I just bought my Macbook last week, and the salesperson at the Macoutfitters store gave me a paper to fill out and send in, in order to get the $10 Leopard upgrade. I'm wondering if, instead of sending it out in the mail, could I just go back to the store I bought my Mac from, and get my copy of Leopard in the store after it is released? I am about to go contact both of the closest Apple resellers and also the nearest official Apple store for info on this, but was wondering if any of you know the answer before I do.