Do you have a recent save you can reload?
Did you try both running out and talking to the guard to leave?
There are ways to bypass the guards,
teleporting by hex edit or temporarily
swapping inventory files to get a duplicate set of teleporter stones (basically the same options as if you were
stuck in the easter egg area). However, you also need your stuff back. Perhaps killing the guards would get them to drop everything, but make sure you save under a different name before trying that (Poison Cloud cast near them would kill them without a reputation drop).