No operator or driver of any motor vehicle shall allow the same
to remain standing within any garage building or gasoline service
station or within 50 feet of any gasoline pump, while waiting for
fuel, service or repairs, unless the operation of the motor of said
vehicle is stopped.
The owner or operator of every garage and gasoline service station
or store shall cause to be posted in a conspicuous place or places
in and about the premises whereon said garage or gasoline station
is located a sign or signs forbidding the operation of motors in motor
vehicles while the same are being fueled, serviced or repaired.