I'm from NY so I do have to wear a back tag. I usually carry a day pack while hunting so I just pin the tag to my pack. I don't know about the legality of doing this (probably a violation) but have never been hassled about it yet.
Before I started pinning the tag to my pack, I had the pack cause my back tag holder to fall off my jacket at least twice. I had to do some back tracking to find the tag.
I'd like to see them eliminated.