I have to agree with this, 30yrs ago if you went to a Dunkin Donuts, when they had the sit down counter and thick ceramic cups. They didn't have a tip cup at the counter if you got take out, now practically every bakery, bagel shop, and donut shop has a "tip" cup. The bakeries and bagel places generally pay more than a restaurant so really why should you tip someone for a cup of coffee to go?
I do tip a waiter/waitress well when I eat out, but picking up Chinese take out???
There is no excuse for what this woman did, if they live in NJ and ever ate out in NYC odds are their waiter was (to stereotype) a gay out of work actor.