valve check service

I just got my bike back from the dealership service center after having the valves adjusted. It started and ran fine for a mile or so at city speeds, and then for about 30 minutes at highway speed. When I exited and stopped at a light, I was idling so rough that it rattled my vision. After that...

What did you pay for your first service/valve check :confused: I got an astronomical quote from my dealer and would like to know what everyone else is charging please :confused: Thanks...