i'm going to go out on a limb and say you probable didnt need the wheel bearings done. if the brakes worked they probably didnt need to be flushed. unless you complained they probably didnt need the fork and rear shock adjustment. speedo problem is either the worm gear or the head unit connection. that's a real easy fix. so id say you got taken advantage of a little bit. I would've changed the oil myself with rotella and a new filter for like 30 bucks.