If he picked up 5 cups of coffee from starbucks, he most likely ordered through the mobile app.
Which would mean he set his own name to Pig for his mobile order. If he ordered at the register you’re telling me they looked the cop in the eyeballs and typed pig into the order prompt?
You can't call in an order. So if they use "picked up" to mean went and picked up an already placed order, it had to be through the app. Plus it's just way easier to order through the app for multiple people at somewhere like Starbucks (i.e. a place no one just gets a plain coffee from).