Roast pig, or a cooked goose, Thaddeus is not a happy camper.
I can't comment on future happenings, or about Chris's parting comment.
The legalities are a little complicated (and I must give thanks to Captain Rick for setting me straight on some of the legal issues) but the Sheriff had a warrant, plus he was there in pursuit of a known fugitive who has a definitive connection to the property (as Thaddeus' son) and was seen moments before heading up the tunnel, which leads nowhere else but the church. Chris and Steve didn't touch the computer until after the Sheriff and Mr. Williams were present, so there was no tainting of the evidence. Thaddeus was also clever enough to implicate himself, after being mirandized, for setting the booby trap.
Steve and Chris might be technically guilty of trespassing, though.
The Piedmont Sheriff is not in jail, and is still in office. He's just under indictment. That might sound far-fetched, but I based it on a similar case less about a decade ago; an Arizona Sheriff was indicted for racketeering, but remained in office throughout his trial. It's a legal gray area whether or not the county supervisors can remove a sheriff, because the Sheriff is an elected official. This put them in a very bad position; their insurance carrier would no longer cover them against wrongdoings by the sheriff or his department due to the indictment, leaving them with an enormous legal liability if the sheriff (or his deputies) did anything wrong. He remained in office all during his trial, until he was convicted. (at which point, he could be easily removed, and was.)