When they are tracing the video feed from the car back to a hotel room, they show a final IP address (it says that is what it is on the monitor) of 359.xxx.xxx.xxx -- Anyone seriously familiar with computers knows that each "letter" of the 4-"letter" IP address goes from 0 to 255 (255=an important binary number less 1).
Hence, "359" is not a valid IP address.
Ms. Nordoff: It's my job to make sure someone like Sarah is into our drink.
Calleigh: Someone like Sarah?
Ms. Nordoff: Young, friendly, hot. She was like a walking billboard.
Calleigh: Can you determine who was receiving the signal?
Ryan: (sarcastically) I'm sorry, I left that seminar at the lunch break. But a paged the resident computer geek, and he says he's on his way.
Stetler: My heart goes out to her, but the taxpayers aren't responsible for covering the cost of Horatio Caine's hunches.
Horatio: Put it on my tab, okay?
Introducing a flashback in which Sarah vomits, she is said to have done "an Exorcist." This is a reference to the scene in The Exorcist where Regan vomits violently on Father Karras.