Knowing how it works (a relative manages the service at a local store) made it less funny to me and wishing they went for a different kind of funny.
First of all, the service took months to set up with hiring dedicated employees and managers. So Dina springing it on them in the morning meeting made me roll my eyes.
Customers go to the store's website/app, log into whatever location they want to shop at, and choose each item themselves. The only way a store employee would choose an item is if a customer selected the option for if an item is out of stock and they'd like a substitution (which some stores even allow you to specify what to substitute with).
The stores have dedicated "pickers" who shop the store, filling the orders. Then they have employees dedicated to taking the orders to the cars. These are not the store associates running in-store services.
Also stores don't take unlimited orders. Customers reserve pick-up time slots and when they're all taken, the service is only available for the next open time slot the next day.
I'm not only a spokesperson. I'm a customer ;)