Don't count on them not prosecuting, common sense doesn't normally enter into those decisions. You can bet your bottom dollar they are continuing the investigation and trying to get more evidence, with their focus on you (you are the easiest target, especially since your phone number was in the caller ID). Stay aware, and don't volunteer anything to the police, they are not your friend in this situation, their job is to build a case that will support charges and result in a conviction, same with the prosecutor. Especially in a small town, where they don't have a lot of crime to deal with, they may spend an inordinate amount of time on such a case and pursue you with a surprising level of prejudice. Common sense doesn't enter into the equation - think "Officer Opie" in the Arlo Guthrie song "Alice's Restaurant." Also, considering your location, if you are not in a group with the right connections, the odds are stacked against you from the get-go. Same situation in NE Arizona. Good luck to you, hope they don't make any more problems for you, but stay aware and guarded.
On a more pleasant note, I saw the pics of your Citabria on another thread, sure looks good, nice to see some progress made!