Among his duties was to survey parishes in and around the city and report on their condition, most of had suffered greatly. In 1804, he preached the Lenten services in Paris.
After the Revolution, he returned to France and took up residence in Paris, where he often preached at Notre-Dame-des-Champs and taught catechism. In 1802, Charles-François d'Aviau Du Bois de Sanzay, the newly installed Archbishops of Bordeaux appointed Rauzan to a supervisory position.