Once the contest is over, the system will still accept submissions but these will receive the verdict `TOO-LATE'. These submissions will still be judged and can be inspected by the jury, but they will not affect scoring and none of the judging details will be visible to the teams.
If the scoreboard was frozen, it will remain frozen until the time set as unfreeze time, as seen under Contests. It is possible to publish the final standings at any given moment by pressing the `unfreeze now' button under contests.
There's not much more to be done after the contest has ended. The administrator will need to take care of backing up all system data and submissions, and the awards ceremony can start.