(a) Except as otherwise provided in subsection (b), it shall be unlawful for any person to smoke a cigar, pipe, cigarette or other device used to smoke or to eat or drink anything on a public conveyance owned or operated by the authority, including, but not limited to, a bus, street railway car, light rail vehicle, a commuter rail train or incline.

(b) Subsection (a) shall not apply to: (i) passengers on a commuter rail car which comprises part of a commuter rail train and which car is specifically designated as an area on the train where smoking, eating or drinking is permitted; (ii) passengers on a bus, street railway car or light rail vehicle which is being used to transport groups or parties of persons, the charge for which is based upon the transportation of a group and not upon the number of persons carried and for which payment is made by a single person or organization and not by the passengers as individuals; or (iii) eating or drinking in the transit stations used by public conveyances owned or operated by the authority.

(c) The authority shall post a notice of any prohibitions or restrictions against smoking, eating and drinking and the penalty imposed by this section on the inside front of all public conveyances referred to in subsection (a).

(d) A person who violates the provisions of subsection (a) shall, upon conviction in a summary proceeding, be sentenced to pay a fine of fifty dollars and the costs of prosecution and, in default of the payment of the fine and costs, shall be sentenced to imprisonment for a period of not more than ten days.