In order to be affected by this, the "customer" must have an Apple Store nearby (that's all we're talking about). If so, I'm sure he can go to the Apple Store, and use one of THOSE machines to order the thing on apple.com.
My nearest Apple store is 103 miles away, I don't fancy driving for 2 hours to queue in a crowded store, fending off repeated attempts from staff to sell me things, so I can log in for 5 minutes to order a piece of software online, and then drive for 2 hours for the 103 miles back home.