Any person engaged in activities authorized under an encroachment permit shall, at all times while such work is in progress, keep at the job location the original permit, or a copy thereof, and on demand, exhibit the permit to the director or any police officer. At all times while the work is in progress the person shall also maintain at the job location, a sign, barricade, or other device bearing the person's name. If required by the director, the person performing work shall also display the permit number and the city's construction hotline number. (Ord. 2009-022 § 2)