There is established in front of the main entrance of the Elumwood Apartments located on the south side of East Second Street between Harris and Wright Avenues, a restricted loading and unloading zone in which no parking will be allowed except for emergency or loading or unloading purposes specified in this chapter. The zone shall be sixteen feet in length and no parking shall be allowed therein, except that vehicles may stop at the curb of the zone for the limited purposes only of emergency uses such as for medical purposes or fire; or for loading and unloading purposes only with a maximum of fifteen minutes use for loading or unloading at any one time. The curb shall be painted yellow in the zone, by the Elumwood Apartments operator, and signs shall be erected by the Elumwood Apartments spelling out the restricted zone purposes and conditions.