Forgive me for my forwardness, but this is roughly the treatment I would give it. Is that horseshit on the road after all? Whatever it is, I like it, and I feel like it makes the scene more real. Softened and lightened substantially, toned, a fair bit of burning here and there. Going for a sort of salt print/paper negative feel, which feels right to me for this sort of scene.
EDIT: This much toning's a bit trite, I guess. But, warm tones for a warm scene, I figure.