Stored Pest Control commendation points are not capped at 250
This might be intentional, but I didn't see it in server-specific differences. Might not make sense to add a cap with the buffed point system. In '07 PC points had a cap of 250:
Note: The most commendation points a player can have at any time is 250. If you board a boat while holding 250 points, a warning will be given to the player to trade the points in. If a player continues to play with 250 points, subsequent games will not award any commendation points. You will also get a warning if winning the next game would result in wasting points, for example if you had 248 points and you were playing in the Veteran boat (4 points per game). In this event, winning the game would only take you to the maximum 250 points, wasting the other two.