I always engage the parking brake when parking out of habit, and noticed this weekend that it is currently doing a whole lot of nothing. Earlier this week I took it into the dealer to have new brake pads and rotors resurfaced along with a rebalance and alignment. They said the brakes and rotors gave them some issues because it was supposed to be ready by 1, they didn't get it finished till 5. Had something to do with having to repack the bearings I believe. Could the technician have screwed something up, or is this another case of a coincidence I'm just not realizing till now? '99 LX with 250k.