Well I managed to do the bingo run today and assumed there was no problem. Ironically, right when I was going to do the bingo event again, my friend shouted "NO DON'T DO IT! YOU'LL GET STUCK!"
And I went to the map and disconnected.
When I relogged, I was back at the Maple Bingo Exit. I clicked on the Maple Admin but nothing happened. I tried using my skills to get out. Nothing. Relogging did no good as well.
I really hope there either is a way out or Nexon fixes this glitch. There's already 4 people stuck with me.