Yup, I've done this, had exactly the same prob. I fixed it the wrong way because I was impatient <-- (bad attitude).
I first sprayed all round the bolt with penetrating oil (did nothing). I then used a rubber mallet and with medium power kept tapping the circled area downwards. It eventually popped right out.
I'm not saying you should do it this way, as Shaha's method seems safer, I'm just saying it works and caused no damage. If you attempt it this way, make sure this is the first bolt on the control arm you undo. Otherwise the suspension assembly won't be rigid enough and will wobble about.
2 years later...it's still perfect.