@BillRM,
The gun is probably the part of the story Zimmerman wanted to get out.
He wants people to know he's armed.
He also made sure the officer recognized him. He asked the officer whether he recognized him from TV. That's how Zimmerman got out the news of his gun.
He's still disregarding laws--speeding--and still getting away without punishment.
The only part of this story that interests me is why Zimmerman didn't get a speeding ticket.