Wardlaw's afternoon grew more frustrating when he was booked by referee John McKendrick after being caught by a dangerous high challenge from Liam Craig, with the free-kick going the home side's way.
The Hearts manager, who would have had to sit out matches against St Mirren and Hamilton Accies if he had accepted the automatic ban, clashed with John McKendrick as the fourth official tried to stop him entering the Tynecastle pitch at the end of Saturday's game.