It is a flint dispenser for a lighter.
Do you drive through the Dallas / Fort Worth area? Have one removed from a 2016 Western Star when installing the apu. Mount bolts go through holes...
Have the truck checked out. It could have been carbon monoxide poisoning from an exhaust leak. Sounds like the same problem someone I knew had.
My daughter's carrier 7500 X4 had a dry out mode in the panel set up.
I recommend you go on youtube and join the Schneider Owner Operators page. It will answer many questions and feel free to ask them for more info....
How would it work for a leased on driver at a company? That's if it passed at all.