The interstate highway scenes occur in an apparent desert. As of Episode 1.3, the race teams had only made it from Key West, Florida, to North Georgia. Neither state has a desert. Also, in a scene driving past a high way sign for Gainesville, Fl a mountain range can be seen in the background.
Alex Tulley's Landscaping Truck has a license plate is 327 FAR. His character is from Hastings, Nebraska in Adams County. With the exception of cars from Omaha and Lincoln, all Nebraska license plates start with the county number (Adams County being 14) followed by the rest. So it should be 14 - A###
Susan Patrakas' Dodge Caravan switches between one-piece headrests and two-piece ones.