The incident took place immediately after the Ibrox club's 1-0 defeat at Pittodrie on 28 November. Novo, who had come on as a substitute in the match, was also pictured with his shorts lowered.
The 30-year-old did not attend yesterday's hearing.
Novo has been struggling with an ankle injury but is expected to return to the Rangers squad for this evening's SPL encounter at St Mirren.