I think it would depend on whether you live in their local area. If so, you will receive an additional 400-point boost on your academic eligibility. Also, if your 2.9 is unweighted, your actual GPA for purposes of your application may be different. That said, I think your chances are not strong, despite your challenging high school. I just don't think SDSU takes that into consideration (although I understand your point, as our high school is extremely competitive and we're in the same boat). Their acceptance rate is only 30%, and they get tens of thousands of apps....good luck!