MA Driver stopped for speeding on motorcycle.  Police allege driver passed stationary cruiser at 82 MPH.  Once operator is stopped Officer notes and odor of alcohol and red/glassy eyes.  The driver initially denies drinking but later admits to having a drink with friends hours earlier.  Driver passes Horizontal Gaze Nystagmus test, but has some difficulty with Walk & Turn and One Leg Stand test.  Booking video show client steady and cooperative throughout booking process.  DWI charge dismissed prior to trial.