Continuity mistake: After Lincoln and LJ have been recognized by the waitress, they speed off down a road. During their conversation in the car, whenever we see LJ from (his) right side, his hair is blowing in a strong draft, and is blown away from the temple. In all other shots, his hair is completely calm, and is hanging down and forward, covering his right temple completely.
Trivia: S4E11: (spoiler) The Scylla alarm on the General's computer is visible on screen for a second or two. Below the flashing word 'alarm', it says it is in section AA-23. That's also the designation of the prison block where Princess Leia is being held in Star Wars. This was certainly done intentionally, but is also easy to miss.