We had an incident a few years ago where neighbors were all hunting in one particular corner, along a creek bottom.
Neighbor A set up early in stand in the dark
Neighbor B came by a few minutes later and set up a pop-up just across the creek bottom and crawled inside, directly in A's line of fire over a feeding station.
Neighbor A approached B as they were leaving and warned him that B was invisible while he was in the blind. B could have been shot. B took it all wrong and thinks A is mad at him for hunting to close to the line.
The point is that crawling into a pop-up without orange is just as unsafe as not wearing orange. Whether it is the law or not, you should have some sort of orange showing if you're in the blind. I have been shot at. It is not fun. This rant is meant for no one in particular. I'm just ranting.
Back in the days when I was 90% a deer hunter, I used to really chafe at putting on Orange for rifle season and did everything I could to duck the rules. I used to take my vest off and hang in on a limb, etc.-- you know the cheats as well as I do. Then one year, I put my orange poncho over the shooting rail of my stand on Opening Day of rifle season. A herd of deer came out and camped out under my stand like I was not even there. They really don't see it. Honest!
There is absolutely no reason not to put on the minimum amount of orange unless you just want to be perverse. I wear a 4'x6' blaze orange poncho at all times as well as a hat. The woods are filled with hunters who are expecting to see orange on you. if they don't see it, they will assume that direction is safe. If they shoot and hit you, it'll be their fault, but you will still be dead. If I were hunting in any season that required orange, and I was in a blind, I'd go and get a yard of Hunter Orange from the fabric store, cut it diagonally both ways and pin the 3' triangles on all four sides of my blind, or take the whole yard and put it over a nearby tree.