While the crew watch a TV report of the fire at the warehouse, a reporter says that the "DC Fire Department responded", whereas a caption at the bottom of the screen identifies the location as "Baltimore". The Washington FD ordinarily does NOT fight fires in Baltimore. One might wonder which the writers intended.
When McGee finds the tracking device on Lowry's car, he immediately confirms that Lowry was being followed. Given Lowrey's paranoid and erratic behaviour he could have placed the device there himself.