I would recommend staying at Wills Hotel near the station (should you be unlucky enough to be travelling by train at the moment). The room was comfy and very quiet. The downside was that the hotel didn’t open until 5pm on a Sunday (the cleaner did open the side door when I knocked so I could leave my suitcase) and the wifi was hamster-powered.
The restaurant called Ave Domitius on Place de L’Hotel de Ville serves vast and tasty salads and pizzas, so if you want to fill yourself here and skip breakfast the following day, then that will work.
Bar Cafe Le Noir Soleil on the corner of Place de L’Hotel de Ville has tasty coffee and anis and has a fine view of the Archbishops’ Palace.
If you want to buy some clothes Devred on Rue Jean Jaures has helpful staff who can speak enough English to make the difference. Devred is fifty yards along in a north-westerly direction from Place de L’Hotel de Ville.