After completion of this mission, a news article will appear online on the Liberty Tree website, as well as a Weazel News radio broadcast, detailing the cops' deaths.
Trivia
If you go around the "start" marker and look in the back of the FIB Buffalo, you will see that there are two cops in the back of the FIB Buffalo, but, during the cutscene, there is no one in the back seat of the FIB Buffalo.
The cops can be heard talking to each other whenever you switch to their point of view.