This happened to me 3 months ago on my 2003 ION.
I paid a dealership ~$100 for new bushings, and then I took my control arms off.
I had to beat the old bushings off with a hammer. Each side took about 30 minutes of beating.
After 1 hour and 30 minutes it was all back together.
I didn't align the car afterwards, but it drove straight anyway.