Too Many Tacos?

Taco Tierra in Fairfield, Illinois has been a regular stop for lunches for more than twenty-five years; they have lunch specials Monday through Friday, and that determines what I order when I stop.  Whether you stop at ten in the morning or eight o'clock at night, the line is out to the street, and you don't order over a speaker.  One of the workers comes to your window, takes your order, (Mild, Medium, or Hot?) and your food is ready when you get to the window.  Recently I pulled up to the window, the lady opened the little door and said "$3.63."  I handed her the money, she handed me a bag of tacos, and I drove a couple miles down the road and parked to eat my lunch.  Halfway through the first taco I realized that I hadn't placed an order, but the bag had what I wanted.  Try that at your local burger outlet.