From what I see, it's profoundly their job to be friendly to all customers. More so perhaps than their competition. You might ponder this before proceeding any further with them:
The Untold Truth Of Dutch Bros Coffee - Mashed
Founded in 1992, Dutch Bros Coffee is considered to be the largest, privately-owned drive-through coffee company in America and it's only getting bigger.
www.mashed.com
Ask them whether it's ok to ask them.
How long is "long while"?