Empty Planet - S2-E8
Factual error: This episode takes place in current Seattle today (no illusions of a "Seattle in this fantasy world") including using Google earth as a means of identifying a specific area of action. But all the street signs in this episode are blue where as all street/interstate signs in Washington State are green with white letters.
Empty Planet - S2-E8
Factual error: In the opening sequence a bomb is detonated on a bus in Seattle, in the vicinity of the Seattle Center/Space Needle. Right after the explosion, as people are moving towards the now smoking bus you can see a palm tree in the background. There are no large palm trees in metropolitan Seattle and absolutely none in this area.
Empty Planet - S2-E8
Other mistake: In Empty Planet where the exploded bus is shown, there is an evidence marker with blood spatters on it. The blood wouldn't be there if the marker was placed after the event had occurred.
Chosen answer: Black SUVs are common police, military and dignitary vehicles around the world. It is not too much to assume they could be rented or owned by the police forces in the areas.
kristenlouise3
Other people have explained it but fore more information, federal cars would most likely be brought to the airport from the nearest agency, so they can drive out to their locations especially in rural situations.