Carl's Jr. is the only fast food place I know of that gives you napkins with an in-store to go order. All the rest expect you to locate and pack up your own.
There was a McDonalds near a place where I once worked that would give you one napkin per sandwich. You could order 12 servings of fries, several apple pies, and a whole tray of drinks, but unless you ordered more than one sandwich, you did not get more than one napkin.
Life is much more manageable when thought of as a scavenger hunt as opposed to a surprise party - Jimmy Buffett