The present application relates to a barrier assembly used to block access, improve security, and landscape property. The barrier assembly comprises at least a support assembly so configured to secure to the ground; a retractable assembly so configured to be received within the support assembly; and a locking assembly attached to the retractable assembly, the locking assembly comprising (a) a locking rod assembly configured to hold the retractable assembly in at least a first fixed position, (b) a tamper proof lock configured to maintain the orientation of the locking rod assembly, and (c) a locking tool configured to access the tamper proof lock and adjust the locking rod assembly so that the retractable assembly can be adjusted from the first fixed position to a second fixed position.