CorvusCorax
'It's only a laugh, no harm done'
Some show dog handlers do that. But it is almost always on private property and the handler is on an ATV. Very different from roadwork on the actual road.
Our old dog's breeder, very successful in showing, used to drive round and round the farm yard with her arm out the car window
And a younger person I know managed to run their own dog over in a pick-up truck, sigh, just bloody walk the things....