Fast food joints learned long ago you don't hand the food over until after you get the money handed over first.
When confronting her co-workers in the break room about their religious beliefs, Sharon states: "the Muslims get along fine without Jesus". In point of fact, Jesus figures prominently in the Muslim faith and is mentioned as an important prophet in the Quran.
After Sharon has picked up Tommy (the hitchhiker), equipment can be seen reflected in the storefronts that the two drive by.