I think first that this information will be leaked if you fill it out. The only times my CCs have ever been compromised is when I used to register my vehicles on the Colorado web page. I wouldn't fill this out any more than I will fill out a UAS registration and for the same reasons.
Secondly, once the police show up, reason is done. Your options are fight or submit. Such are the tools of bureaucracy. In other words, don't speak to police and don't speak to the FAA. It is a waste of your time and, literally, deadly dangerous. Talk to your representatives in Congress. As ugly as that sounds, that is the only option we have for reason and civilized conversation.