Every person who shall willfully and maliciously obstruct a street railway company in the use of its tracks, or willfully and maliciously delay or obstruct the passing of its cars or carriages, shall be punished by a fine not exceeding three thousand dollars ($3,000) or by imprisonment not exceeding two (2) years; provided, that nothing in this chapter shall be construed to interfere with the necessary work of laying and repairing any gas or water pipes or sewers, or the necessary and reasonable obstruction of tracks by vehicles in the process of loading and unloading not prohibited by any town or city ordinance. Every person who shall aid, assist, abet, counsel, hire, command, or procure any person to do or attempt any of the acts mentioned in this section shall be subject to fine or imprisonment pursuant to this section.