Someone who is narked is annoyed about something. He's probably narked because he didn't see the ad himself. = annoyed. angry about something someone has done (nark (1800-1900), from nark (19-20 centuries), from nak )
cause annoyance in; disturb, especially by minor irritations; "Mosquitoes buzzing in my ear really bothers me"; "It irritates me that she never closes the door after she leaves"