When Mike suspects that the Caprice station wagon is bugged, he races across the desert and into a wrecking yard, where he searches for the bugging device. In an earlier shot, his 'sniper rifle' is clearly seen in its case in the back of the station wagon, but when he's at the wrecking yard the rifle and case are no where to be seen.
Mike's radio plays KDSK 92.7, a station located in Grants, NM. Although KDSK can easily picked up in Albuquerque now, that did not happen until the purchase of a translator station ( relays the signal from another station) in 2014. At the time the show is set, reception of this station would be limited to the highest elevation locations in the Albuquerque foothills, and certainly not in the downtown area where Mike's house is located.
A gas cap is surrounded by metal, which acts as a Faraday cage, so putting a radio transmitter there would not work well, if at all.
Mike asks the salvage yard attendant for gas cap for a 1987 Chevy Caprice. This was unnecessary, because with few exceptions, gas caps are universal.
When you see Kim Wexler typing the Mesa Verde Compliance in Word, she uses the font Cambria, however this font was not released until 2007, way after the events of this episode occurs.
The air force captain refers to 'stolen valor', however that law was created in 2005, a few years after the episode takes place.
The backlit color LCD in the tracking device receiver would not have been common in a portable electronics device in 2002 when this episode takes place.
When Mike is changing the battery for the transmitter, the Energizer battery seen has the current wrapping design which did not exist in 2002 when the show takes place.