Yes, ILLEGAL alien traffic. IMO.
The instant I saw the article I wondered, now if I had a van packed with ILLEGAL aliens would I stop at every rest area, gas station along the way as each "passenger" needed to go, or . . . . Same if I had a load of ILLEGAL drugs and was ILLEGAL myself, driving ILLEGALLY.
The problem "started several years ago" said the employee who started work in 1989. So did massive violations of our borders.