I also have a 2009 Cobalt with issues

That really does still sound like control arm bushings. How long ago did you change them. Unfortunately they are prone to failure on these cars and if you bought cheap imported ones they may be worn out already. With the wheels on the ground get underneath and check things out carefully. Use a pry bar to look for movement where it shouldn't be. Have a helper turn the steering wheel and push hard on the wheels themselves while you watch for things moving that shouldn't be. If all else fails take it to a shop that specializes in alignment and front end repair and have them go over it.