If I had someones original tag, then yes, for sure they would get it. Some people have.
I have tag info for 1000s of cars, some folks were writing the codes down as early as 1975 that I know of. If I have any info, whether it is an original item or not, it is free to the owner of the car, all they have to do is prove they own it and that it still exists.
Code info is not listed on my site, but the original items that I do have, fender tags included, are.
T/Ake care,
Barry