Tim answers the call to "...help the lady on Interstate 80." But when he gets to Patsy and her car, she is on a back road, and not on any kind of a major highway.
Sara drives the truck to the bar to sign up for the talent show. When she gets out she shuts the truck door. As she's talking to Johnathan the camera shows the truck with the driver's door wide open.
When Mark's car overheats twice, a lever raises the hood twice. The lever may be operated by a crew member who also released steam.