From reading the article, it states that he doesn't have to talk to the police. I'm assuming he already some kind of brief statement about the incident...or either they don't need an "official" report since there were no major injuries or damage and no one else was involved. The police just want "more information" to "clarify" things.
However, I'm with you that it seems quite suspicious that you would go through all the trouble to set up an appointment to talk to the police...and then turn them away. If you weren't going to talk to them to begin with, why not just say straight away "Hey, I don't have to talk to you guys and I'm choosing not to."