Corrected entry: When we first see Scully, going into the office at the beginning of the episode, we see when she is on her way to the office and when she enters it she is wearing her badge, yet when the shot changes, it is no longer on her, then when she comes out she is wearing it again.
Corrected entry: Mulder takes out spray paint from the trunk. The problem is that the car isn't his but it was rented. It’s not plausible that all the cars in the rent-a-car company were equipped with spray paint. It is also doubtful that Mulder anticipated the paint use and bought it on purpose.