Today, while parked, my e-brake decided to lockup. Funny thing is, the passenger's side rear released, but the driver's side stayed firm. I eventually had to remove the wheel, and hit the drum itself with a hammer before it loosened up to the point I could drive it back home. Now, every time I park (even with the e-brake off), it still locks up but does break free with little effort. Does anyone know what is causing this, or how to fix it? I personally think it is the cable not fully releasing.