So, in order to improve security, you now have a procedure in place that allows an unknown person to change the root password without any auditing of the event.
Keep in mind I'm working from my experience with Linux. The situation seems almost identical, right down to the 'root password for maintenance' prompt, but beneath the skin it might not be quite...
Try ctrl-D to skip. If it gets you into a shell at all, you're there. You may need to do some manual mounting and/or remounting before you can actually alter the shadow files though, since / will...