This is just a pretty good publicity stunt by the "piano man".
I think you have about a 50/50 chance of being correctamundo.
I agree with you.
This biggest "giveaway" is that nobody has come forward.
This make "one" think that it was planned.
Another fact that does not look good for him is the tags of his clothes have been removed.
Sad to say, but publicity is the name of the game in this case.
IMHO