Don’t try it unless you have a lot of spare time that you don’t mind spending in jail or spare cash you don’t mind paying in fines.
What people get confused about on this ‘fictional person’ issue is that it doesn’t matter how the government’s courts categorize you (fiction, real, whatever), they still have the same power either way (they can send a police officer to hit you over the head, cuff you and then cage you) and there’s no magic incantation you can invoke in their courts which will revoke this fact. I don’t think the capitalization of the name matters, I’ve seen it written both ways in legal documents that I’ve had to deal with (which, to my chagrin, has been no small amount). Maybe other jurisdictions are more finnicky about capitalization and they require names to always be capitalized but, again, I doubt very much that it’s anything but a formal requirement for any legal document in that jurisdiction.
Where fictional personhood is a problem is as a liability limiter. The State itself is the ultimate fictional person. The “crown” or the “papacy” or the “presidency” does this or that. Not a single living, breathing person is actually legally liable for whatever these fictional persons do. The same goes, to a lesser extent, for corporations which are created in the image of the State. If the government’s courts perpetuate this same concept onto private citizens, it is only as a legal blind for what they really care about: making sure the King, Pope or President himself can never be held legally liable for anything.
Clayton -