The City Council may, from time to time by resolution, designate places upon and along the highways in the City where, for a period of not more than 90 days, specific traffic and/or parking regulations, prohibitions and restrictions shall be in force and effect, and shall designate such locations by proper signs and markings. Such regulations, prohibitions and restrictions shall be effective as if they had been specified in this chapter. No person shall operate and no person shall move, remove, destroy or deface any sign or marking erected, posted or made by authority of this section. Any person who shall violate any provision of this section shall, upon conviction thereof, be subject to the penalty set forth in the law or elsewhere in this chapter for a violation of such nature and, in case of a violation for which no specific penalty is set forth in the law or elsewhere in this chapter, to a fine of not more than $25 together with costs of prosecution; provided, the purpose of this section is to allow for test and experimental determination of the feasibility and desirability of permanent changes in the ordinances of the City relative to traffic and parking.