Any person, corporation or entity operating under a permit granted hereunder shall at all times see that the driver of each vehicle utilizing the streets or alleys of the city of Yoncalla shall have, in the driver’s possession and in the truck being driven, an original permit or a city-approved trip permit, and shall show the same upon request to the city administration or his designee or to any police officer of the county of Douglas or of the state of Oregon. Unloaded trucks will be permitted to not have a permit in their possession if, and only if, they are en route to a pickup location covered by a permit and will be obtaining a trip permit at that location. All said officers are hereby given the authority to stop a truck at any time for purposes of inspecting the permit. (Ord. 336 § 7, 1994).