Stormwind Stockade

I was going for this instance as a level 64 Balance Druid. It was easy to sneak past the Harbor guards, as they were only a level above me and therefore unable to see me if I dashed past, leaving enough space between me and them.
The canals were pretty desolate, but the occasional low-level Allie ran by on their mount. I get near the closest enterance to the Stockades, and see the guards. I thought, oh &*!@, would they kill me? Should I dash in cat form or heal myself in normal form? Or should I put some HoT spells on and go in as Moonkin? I eventually decided on the last one, for the armor contribution could have come in handy.
After hesitating much trying to decide if the coast is clear, I buffed myself with Mark of the Wild, put on Regrowth and Rejuvenation, went Moonkin and ran into the Stockade. With only two guards attacking me, buffs, HoTs, and the armor bonus, what could go wrong?

"Additional instances could not be launched, please try again later."

#$%^.

For the Horde who may not know where to go: Take the boat from Auberdine to Stormwind. When you get off the boat run straight and take the path to keep going up. When you get to the very top, you are going to go right and then take your next left into the city. Take the path on the right side of the canal. Follow the cobblestone path (you will go under 2 archways). Right after the 2nd archway, and before you come to the dead end, take a left over the bridge (the street marker will say you are going towards the Magic Quarter). Go over the bridge and take an immediate left (Do not go under the archway. Street marker says Trade District). Straight ahead you will see an archway/doorway with 2 guards, go through it. In the center of the room are the stairs leading down into the instance. Good Luck!

The entrance is at 51, 70, which is the northern-most corner of the Mage Quarter. There is a building that is a circle with four smaller circles placed on the edges. That's it. Fly to it, drop down, and enter the building. Run forward, down the stairs, and enter the entrance. There are two Level 85 guards at the only entrance, but you should be able to make it past them without dying. If not, it's a helluva run from the Eastvale Logging Camp. :P