172. The Société de transport de Lévis succeeds to the rights and obligations of the municipalities of Saint-Étienne-de-Lauzon, Saint-Nicolas, Saint-Rédempteur, Saint-Lambert-de-Lauzon and Sainte-Hélène-de-Breakeyville with respect to any public bus transportation contract entered into by those municipalities. Notwithstanding any provision to the contrary, a carrier party to such a contract may, without further authorization, continue in accordance with the contract to transport persons for remuneration in the territory of the Société de transport de Lévis until the end of the contract.