§ 14. Rules and regulations for state highways. The commissioner of
transportation is hereby empowered to make rules and regulations from
time to time for the protection of any state highway or section thereof.
He may prohibit the use of chains or armored tires by motor vehicles
upon such highways, and any violation of this section shall be
punishable as a traffic infraction. Any person convicted of a violation
of this section shall for a first conviction thereof be punished by a
fine of not more than fifty dollars or by imprisonment for not more than
fifteen days or by both such fine and imprisonment; for a second such
conviction within eighteen months thereafter such person shall be
punished by a fine of not more than one hundred dollars or by
imprisonment for not more than forty-five days or by both such fine and
imprisonment; upon a third or subsequent conviction within eighteen
months after the first conviction such person shall be punished by a
fine of not more than two hundred fifty dollars or by imprisonment for
not more than ninety days or by both such fine and imprisonment.