I think that's the main difference between the Army and USMC... We had guys come back from leave (white kids wanting to be a different pigment) with chinstraps and the CSM would have them in the front leaning rest in their civvies...
I know that feeling... But your beard is thicker than mine...
I went on vacation while driving home for terminal leave- didn't pack my razor so I came back and no one could have guessed I was in.