I call Bullsh*t on this part of the story.
Actually, Obummer’s motorcade was probably causing the “congested roads” as his security guys/local police tried to clear the road ahead. I believe (visited Oahu & Kauai years ago) most of the roads are two-lane and I’m guessing a presidential motorcade, especially The Won’s, takes up both lanes. I’ve heard that when he visits the islands, he really messes things up for the locals ... but then again, what else would we expect from this guy.