The SQL server is shutting down. Re-run the query after server restart is complete.
There could be a scenario where your SQL server may take some time to shutdown. It could be waiting for rollback of transactions to complete. Please read the link http://social.msdn.microsoft.com/Forums/en-US/sqlsecurity/thread/b9a7b2fb-0f41-4eef-a183-70c8a4f6c9c9
If your SQL server is not a PROD instance, and you choose not to wait for rollback to complete you can kill the sqlserver.exe, or stop and restart the SQL Server windows service.