User blog comment:Mistertrouble189/Save the TIOD bloggers!/@comment-405605-20100904200942

judging by the map and various comments in previous posts, it's likely that the sports store they're referring to is KokoNutz Sports Town in Palisades Mall.

If you look at the map, you'll see a sports store (red) with an gray area behind it, which is probably the studio. Not only that, an earlier post by Wallace states that he was heading to Chris' Fine Foods, which is just a few feet away from the sports store on the second floor.

The only thing that doesn't add up is that there isn't a workbench icon in the apparent studio, but the map could just be incomplete or spoiler free.