Whether or not you see more kiosks like this in the US will depend on feedback over the next several months. Walmart is already exploring a similar concept in the UK, however, and it's also experimenting with vending machine-like "Pickup Towers" in five cities across the US (Atlanta, Bentonville, Detroit, Houston and Raleigh) that streamline the process of retrieving non-food orders.

It won't be shocking if Walmart pushes forward. Amazon just opened its first drive-through grocery store, and it's already piloting an internet-powered grocery store with no checkout lines. If Walmart doesn't automate some of the shopping experience, there's a risk that Amazon will snap up those customers reeled in by the prospect of faster shopping.