[BluH2o]

The article only mentions the tractor/truck and nothing about a trailer. Did they drop the trailer somewhere ...

Not likely ... a tractor running without a trailer is called "bob-tailing" ... a team (two drivers) "bob-tailing" would attract law enforcement types very quickly ... especially out on the open highways. In an urban area this would be less suspicious ... we're talking open highway here ...

[babaloo999]

Unfortunately, I know all too well what 'bobtailing' is.
I was questioning why they were at a gasoline pump meant for passenger vehicles.
And apparently that station sells diesel for cars, but not the "big rigs"?
These guys must have been like the 9/11 hijackers. They knew how to drive the truck and absolutely nothing else.