My shifter (brifter?) was getting stuck on the handlebar tape when I applied the rear brake. My LBT made an adjustment to the brakes that fixed this but now I notice that the quick release on the brake is open and if I close it the brakes grip the rim. Is it OK to ride with the quick release open? Did the mechanic adjust it this way for some purpose or should I take it back and have him readjust it so that I can close the quick release?

Thanks...