In my state, refusing to identify oneself to a law enforcement officer who is conducting an investigation in good faith (regardless of whether an actual crime has been committed, such as if (s)he were responding to a complaint called in by a third party) you could open yourself up to a misdemeanor charge of Obstructing Official Business, especially if there is an attempt to conceal your identity through a false name. I agree with Mr. Van Gervan that it will at the very least cost you time and money, which to me is avoidable. If you have an issue with being questioned, it's never a bad idea to comply at the time, and file a complaint with the department. In today's world, de-escalation is ever wise, and would lessen the chance of wearing linked bracelets.
I'm not familiar with the original story, but I prefer taking an approach toward people unfamiliar or uncomfortable with drones and their legal use as an ambassador. Winning the hearts and minds through education will ensure our retaining legal use of drones. Confrontation can lead to legislation written to further limit areas where we can enjoy this hobby.
This is my opinion, not meant to be argumentative.
Very well said!