If you are close to a stopping point south of Shreveport on I49 at a town named Natchitoches, there is a nice little campground there just off the interstate called "Nakatosh Campground". Stayed there for 3 nights back in November. It is small, but has some pull thrus and all amenities, cable, wifi, water, sewer, and 30-50 amp electrical.
Good place to spend a night.
Wayne and Susan
2012 Georgetown 351 DS | 2012 Ford Focus-Brake Buddy