Brakes

I need new rear brake pads. I was told from the lying asshole dealer that the brakes had just been done, stupid me believing him. There is no way in hell that the brake pads wore  out in 8 months with me only driving once or twice a week. Anyway, I started hearing a grinding sound in my left rear brake, at first I though it was just some dirt, but after washing and cleaning the wheels, it was still there. Today I took the wheel apart to see what was up, and sure enough, one of the pads was down to the metal. Of course being a Sunday and tomorrow a holiday, I can’t get the pads until Tuesday. I’m thinking of doing all four wheels, not sure yet. At least disk brake pads are easy to do.
I was planning on going for a drive tomorrow, but I guess that’s out of the question.