The defender was sent off after what appeared to be a standard foul on Vince Lia with ten minutes remaining and now faces missing out on the top of the table clash with Melbourne Victory on the weekend.
The club will now challenge the impending suspension and hope to have Colosimo's red card rescinded which the player in question remained hopeful of.
"I'm disappointed clearly but there's still hope as the club are looking at it. I'll have to wait and see if I'm lining up next weekend," he said.
Colosimo heaped praise on his teammates for producing a gusty win in very trying conditions in Palmerston North.
"You know the sort of game it is when you're applauding your goalkeeper for kicking the ball into touch and simply getting some distance on it," he said.
"You know it's not the sort of game that's going to be won by pretty football - it was a day for tactics, sticking to the game plan and seeing it out.
"You can see why Wellington have been unbeaten at home for 14 games - partly they're a well-drilled side, but it's a journey and a half to get there. We had the flight then a two and a half hour bus ride."