To continue the OT, when I was a high-school junior in 1959 (yes, 64 years ago), a friend and I got passes from 150 Causeway to take photos at Deerfield and Greenfield. While at the Deerfield shop, we were challenged, not because of our paperwork, but because we might be documenting shop activity. If there was that level of concern about corporate eyes-on in the mid-20th century, it has only intensified in the intervening decades.
Rules violations or inactivity can be real or perceived, especially by ambitious managers. Anything that might appear to be surveillance, even if there is positive commentary, can cause unease, even among "friendly" crews.
The Golden Rule is one we shouldn't violate except for situations of danger.
"A gray crossover is definitely not company transportation."