I would endorse USMCGrunt here. Clarkson is correct in checking with cadre. Cadre could grant permission, or they could say no.
Now you have me curious about my DS. Some of DS' friends are commissioning next week at his college. I may be going down for this because my idiot kid ordered a gift for one of them, but had it shipped home instead of his address down there.
(It happens to be a whip which will be mounted on a plaque
). So I'm wondering what DS will be wearing. I suspect it will be his dress blues since it's a ROTC event at his own college. We'll see.