Yup! You can also see it in ILM's visual effects breakdown video! ;D https://m.youtube.com/watch?v=btn2tPxjisA
Not necessarily. Sometimes truck drivers work in teams so they can get the cargo transported quicker. No breaks because the second one is driving while the first is sleeping. Even though they aren't driving at that time, they're still called a truck driver, because that's their position.