(a) Any person who without authorization dumps garbage or trash, or assists in the unauthorized dumping of garbage or trash, in a dumpster or other solid waste container which is located on the property of another person and leased or otherwise owned or maintained by another person is guilty of a misdemeanor and, upon conviction thereof, shall be punished in accordance with subsection (b) of this section. The act of throwing isolated objects into a dumpster or other solid waste container in the prevention or elimination of litter is specifically excepted from any penalties under this section.
(b) Any person convicted of a misdemeanor under subsection (a) of this section shall be subject to the following penalties:
(1) Upon a first conviction under this section, the defendant shall be fined not less than $50 nor more than $250.