Comes to $1.83 after all fees. Go to Postmates, search for the Ice Cream Shop (I know they're in LA and Boston, dunno where else). Choose any pint, use code SENDAPINT on checkout. Buck eighty three delivered in a few minutes.
Note that it asks for tip after delivery. YMMV on amount, I gave two bucks. A pint delivered for $3.38 in 15 minutes is still a great deal.