I was approached by a CO a couple of years ago, he also had no orange clothing.
And of all the things he approached me about, faded orange hat..lol.

There was also a local CO sneaking in on Charlestown State park land that was off limits to hunting.
A friend of mine reported him not knowing he was a CO, the CO actually had a gate key to the off limits area.
Supposedly he lost his rights to get drawn for hunts at the park and received an official reprimand.