I backed out of my drive a few days ago and spun the tires for just a second on my off-camber driveway. Since then the ABS and Service Stabilitrak displays have stayed on. From what I've read its either the WSS or SPS. Any clues as to which it may be? How did the tire spinning cause these issues?

Without a shop scanner, it is hard to say what the related problem/codes are.
You could remove both battery cables for a few minutes and see if that clears the lights & codes. If your lucky, maybe then they won't come back on & your good to go.

might just be a plug or wire came loose