(A) Whenever a mail drop zone is designated and marked by traffic-control devices in accordance with division (B) below, no person may park any vehicle or permit it to stand within the zone for any purpose other than depositing mail into a mail drop box and then only for a period not to exceed 30 seconds.
(B) The locations specified by the town from time to time are declared to be mail drop zones and the Administrator shall install appropriate traffic-control devices to give clear notice of the limitations set forth in division (A) above.