[Admin]

You can edit newreply.php and newthread.php and replace this:

  // auto bypass queueing for admins/mods
  if (ismoderator($foruminfo[forumid])) {
    $visible=1;
  }

With this:

  // auto bypass queueing for admins/mods
  if (ismoderator($foruminfo[forumid])) {
    $visible=1;
  } elseif (whatever) {
    $visible = 0;
  }

I don't know if you're checking his IP address of hostname, so just use what you want instead of whatever.