In charge of a restive horse

Since time immemorial, the internet has been a source of urban legend.  A certain proportion of these myths refer to ancient road rules involving horses, laws that are still in force a century after their use-by date.  They almost inevitably prove to have been repealed decades ago, much to everyone's disappointment.

It is with great pleasure therefore that I give you section 303A of the current road use regulations of the state of Queensland, of the nation known as Australia:

TRANSPORT OPERATIONS (ROAD USE MANAGEMENT--ROAD RULES) REGULATION 1999 - SECT 303A

303A Giving way to restive horses(1) This section applies if a person in charge of a restive horse gives a signal, by raising a hand and pointing to the horse, to the driver of a motor vehicle on a road.
(2) The driver must--
(a) drive the vehicle as near as practicable to the far left side of the road; and
(b) stop the vehicle's engine; and
(c) not move the vehicle until there is no reasonable likelihood that the noise of the motor, or the movement of the vehicle, will aggravate the restiveness of the horse.
Maximum penalty--20 penalty units.
(3) In this section--
in charge of includes leading, driving or riding.
This is exactly my 400th post, by the way.  How the time flies.