Team manager Richard Hope said the atmosphere at the Colomiers ground was "terrifying", with fans allegedly throwing coins and toilet rolls and spitting.
Local fans and Colomiers players have been campaigning for the player's two-year ban to be overturned and Pontypridd faced a heated reception during Sunday's encounter, which they lost 38-21.
However, a neck injury saw him having to hang up his boots and hand on the captaincy to David Humphreys who led them to success against Colomiers at Lansdowne Road.