I find it funny that Apple has not mentioned anything about using this feature to pick up items at the Apple Store. Currently they want physical ID cards when you pick something up at the Apple Store that you have ordered online. I wonder if they will get ID scanners (or use the existing credit card readers to read it), or if they will funnily, not accept the Digital ID. I have used my state's mobile ID app to pick up stuff from Apple without issue, but funny enough, you would think this would be a feature from the wallet app.