(a) No person shall park a bicycle or electric bicycle upon a sidewalk in such a manner so as to unduly interfere with pedestrian traffic or upon a roadway so as to unduly interfere with vehicular traffic.
(b) No person shall park a bicycle upon a roadway in such a manner as to interfere with vehicular traffic.
(c) No bicycle shall remain unlocked when parked upon any public way or place.
(d) Whoever violates any provision of this section is guilty of a minor misdemeanor on a first offense; on a second offense within one year after the first offense, the person is guilty of a misdemeanor of the fourth degree; on each subsequent offense within one year after the first offense, the person is guilty of a misdemeanor of the third degree.