Texas Penal Code - PENAL § 42.03. Obstructing Highway or Other Passageway

(1) obstructs a highway, street, sidewalk, railway, waterway, elevator, aisle, hallway, entrance, or exit to which the public or a substantial group of the public has access, or any other place used for the passage of persons, vehicles, or conveyances, regardless of the means of creating the obstruction and whether the obstruction arises from his acts alone or from his acts and the acts of others;  or

(2) disobeys a reasonable request or order to move issued by a person the actor knows to be or is informed is a peace officer, a fireman, or a person with authority to control the use of the premises: