"These particular cases only involve facts where the person arrested failed to comply with an officer's direction to leave the roadway or public passage. While all citizens have the right to assemble and protest, they do not have the right to block streets and impede the flow of traffic. Under Louisiana law, first-time offenders, should they avoid further arrests and convictions, may have their misdemeanor arrests expunged from the criminal history records of the State of Louisiana at no cost."