Upon the filing of an application for a sign permit, the authorized city official shall:
(A) Examine the plans and specifications and the premises upon which the proposed structure shall be erected; and
(B) Issue a permit if the proposed structure complies with the requirements of this chapter and all other laws and ordinances of the city. If the work authorized under a sign permit is not completed within six months after the date of issuance, the permit shall become null and void.