You definitely lose out on a huge bargaining chip when you're trying to get more money out of a school that is already your best option (quality-wise, which is how they will think). Nevertheless, you have nothing to lose.
Since your LSAT is a point below their median, you also lose bargaining power. However, your GPA is above their median, so that helps. Otherwise, I suspect that being a non-traditional could help your case. Perhaps you can emphasize that you're contemplating not giving up a career rather than attending law school because of the economy and your debt aversion. Also, if you have any kids or are married, you have more of a case for more money.
At this point, they're probably out of money. But it doesn't hurt to try. And it doesn't hurt to keep trying as people start turning down their scholarships.
Thanks for the advice...we'll see how it works.