I do not think that you should panic. You have already applied to 10 schools for MA programs. Typically MA programs have less stringent requirements for candidates than PhD programs. Since you mentioned that your school sends a letter explaining the lower GPA's I would imagine that this would not be as great a cause for concern. Also, your GRE score is decent. The AW writing is off concern, but can be couter balanced by other things, your LORs, personal statement and writing sample will be quite important.
I would recommend possibly applying to a couple lower ranked programs that are a great fit for your work. Fit is key. Remember that if the program is not a good fit for your work then it is not really worth applying.
I am not a sociologist, but these would be my recommendations. Good luck!