Can we bring bags in the museum? We have a couple hours to kill before the flight and have a couple of book bags and a suit case

Yes, we have a secure area where you may store your book bags and suit case while you enjoy the exhibit.

The museum closed at 5pm but I don't see why not, unless you and your family are secretly french and want the paintings I don't think there will be any problems. No harm in asking, then you can let others know if there are rule prohibiting it. So if you chuckle something that sounds french, expect the worst!