Yeah, don't stress..
My undergrad was a 2.56..
I went back 13 years later, took some undergrad courses and got A's in all of them and now I'm set to graduate with a 3.5 with an M.A. in History while starting on an MPA and debating between Law School or PHD..
My age (39) is a consideration, but my post graduation debt load is more of one. Due to time considerations I may do Law School as opposed to PHD, but I am still uncertain...