It would make sense that the entities that would wish to perfect this technology would use average joes until they are getting high enough quality to make a believable celeb fake.
I would use the "or otherwise transfer ownership" and tell them that I placed their weapon on an island in a lockbox to make sure no one else gets it. Send them the key and the registration papers. Done.
Hawaii is strange in that a lot of their state and local laws copy Japan's structure.
>and extra cautious
I think you mean paranoid.
I like to think of it as a controlled panic attack. It helps me stave off the 'uncontrolled' ones.