Well. If you'd like to come down to our offices and give a statement - and I'm speaking to both you and Castiel, now - we can at least resolve the issue of you occupying his vessel. If the Winchesters have other charges they'd like to bring against you, we'll deal with those as they come up.
I should note that our office frequently makes use of our resident psychics, as well as a woman who can always detect a lie. One or more of them are likely to be present when you come in.