The players left the ground around 12 minutes into the delay as officials addressed the situation.
With both goals needing to be the same dimensions,the groundstaff from Central Coast council got two portable training goals from under the grandstand and took the wheels off.
It happened in the 10 minute,by which time Keogh ended his five-game run without a goal. He added a second in the dying seconds of the game.
After the game resumed,former Mariner Ferreira scored two goals to give his side a 3-0 half-time advantage and set up a three-point lead at the top of the table.
They were the first goals in 23 months for the Portuguese forward whose last one ironically was a penalty for the Mariners against Perth on the same ground in January 2017.
The loss meant Central Coast went through 2018 with just one A-League win in 24 games and have gone 15 matches since their last victory.