I call bull, the FBI would have never even let him through the Hospital door unless they had been ordered to from higher up and for that matter Judges don't "waltz" in of their own accord, they are directed to by somebody in the Department of Justice.
Until he has been formally arraigned or he has petitioned for a writ of habeus corpus, the Judiciary has no jurisdiction.
IMHO this was orchestrated by the Justice Department at the request of Obama and Holder.
Occam's Razor.
Simply put: THEY DON'T WANT HIM TO TALK!