Any order, byelaw, regulation or other instrument made by a council with respect to a highway which becomes a trunk road, which would, if it had been made after the highway became a trunk road, have required the consent or approval of the Minister, may be revoked or varied by an order made by the Minister in like manner and subject to the like conditions as the original instrument, so, however, that no appeal lies to the Crown Court or to a magistrates’ court against any order made by the Minister under this paragraph.