The closest one is about 4 miles west of the junction, just a few blocks south of I-40 - one of the new owners is a retired police officer. One advantage to this location is Griffith RV is just around the corner from this campground. Tom Griffith has been working on Airstreams for 30+ years and does excellent work if you need anything done. McClain's RV and Camping World are also a mile away.
Council Road RV Park
Rush hour isn't too bad - especially where you will be working. The campground is not in a "bad" part of town. It is your typical small commercial campground sitting inside a major metropolitan area. I drive by there all the time, but have never driven through. I know the retired police officer (Sam) and I know they have been working hard the last three or so years to make it a nice, clean park. The officer is a RV'er himself. Easy access to get anywhere in the city. The usual restaurants and chain outlets are nearby - Best Buy, Wally world, etc.
The Sands RV park 721 S. Rockwell Av. (405-787-7353) is one mile closer, right off I-40, but I don't think it is as nice.
There is a new, rather large and pretty park at I-35 and I-44 in northeast OKC, but that is a ways off from where you will be working - Twin Fountains RV park - 405-475-5514.
Hope this helps.