no not a good idea, it does not matter if the engine is running or not if the trans is not in gear, not in gear no fluid moving so its the same as off.
just get them to lift the rear tires and tow in reverse and it will be fine,
but if the tranny is broke who cares
hth
just get them to lift the rear tires and tow in reverse and it will be fine,
but if the tranny is broke who cares
hth