As far as I know the upper control arm bushings can be replaced individually, but unless you insist on doing the work yourself it makes more sense to replace the upper control arm- You save in labor costs . It comes from fastlane (and competitors..) with the new bushings ready to go...
The lower bushings do need to be pressed in.
Can a machine shop do it ? beats me.Can they ? It's a mechanic's job.
Good Luck