Interesting that the "practice" on civilian vehicles.
Prior to shipping out downrange, our training and qualification was stateside, and it was all on civilian targets. We followed cars and tracked them, orbited houses and ranches while identifying everything on the ranch, worked up target descriptions and flight patterns on civilian boats, aircraft, cars, etc, long before going into a hostile area to do the same.
We weren't building dossiers or prying into anyone's life; we were using what we all commonly see in public to build and develop mission skills that made us able to do our job, and to save lives.
Those same missions overseas were used to locate weapons caches, follow and observe weapons traffickers, catch terrorists, spot people putting in IED and to do route clearances, and other missions. Important stuff.
The people followed in the US were oblivious to having been tracked, and we didn't care who they were or what they were doing. We picked out a car on the highway and followed it; not an easy thing in traffic with a lot of turns, especially doing it through a camera or at night, while maintaining a low observable flight pattern. It might be a simple exercise of following the car to the mall, or a house, and identifying as much as possible about the car, the occupants, their behavior, etc...then moving on to find a different target. All exercises that paid off overseas.