From Guns.com:

On Sept. 11, 2015, Michael Picard, known locally as an open carry advocate, was protesting at a Connecticut State Police checkpoint in West Hartford, which he feels are contrary to the Fourth Amendment, and a waste of public money. Standing several hundred feet from the checkpoint, Picard held a three-foot by two-foot yellow sign reading, “Cops Ahead: Keep Calm and Remain Silent.”

At the event, he had his camera, phone, legally carried pistol and pistol permit confiscated by troopers. He was subsequently cited by the troopers with use of a highway by a pedestrian and creating a public disturbance, then released.