Why are you trying to buy GTA, GTA2 and Wild Metal? Those three games are the ones that Rockstar offers free on their site
I just had a go at downloading GTA, and it worked fine for me, even though I wouldn't be able to buy Rockstar games from Steam previously. If necessary, you could always just lie.
Also, Rockstar totally missed the chance to cash in on Steam sales - it showed me the Rockstar offers, but said they weren't available in my region.
I'm not. I hate GTA and I already have Wild Metal on my Dreamcast.
I'm just saying those three games are still region locked.
Edit: By the way, this is strange - it appears as if Rockstar didn't remove the region lock on most of their games until after the XMas sale, and Ubisoft didn't mention the toning down of their UbiDRM until after their sale was over. Doesn't anyone else find that a little bit strange, and a bit too coincidental?