Exceptions to the foregoing provisions in sections 9-32-1 through 9-32-3 may be made where necessary for the maintenance of the public health, welfare and
safety, or where required by law. Such exceptions shall include, but not necessarily
be limited to, police, fire and other essential governmental services, the room rental
services of hotels, motels or similar establishments, funeral homes and mortuaries,
hospitals, medical clinics, sanitariums, rest homes and the prescription drug services
of business establishments. The mayor shall determine such approved exceptions as
are necessary for the maintenance of the public health, welfare and safety, and include
a listing of the same in such proclamations as may be issued by him or her invoking
the provisions of section 9-32-3; and he or she shall file such proclamations with the office of the city comptroller.