Illegal yes but I for one WILL NOT step into the woods,regardless of the law during rifle season without it on and WILL NOT take it off,even on land that is bowhunting only and it isn't required.
I did pose for a picture with only my hat on but the one taking the pic had his vest on.
I have seen orange save a life,and this person was in a stand.
I have also seen rifle hunters tresspass onto public bow only land with a rifle during gun season.
Not a chance I am willing to take.