Have to say, I thought the whole thing today was quite bizarre.
I am in T3 of the North Stand, right on the half way line.
We heard the 1st announcement, but then the stewards in our area knew nothing about what's was happening, and then told us to stay where we were. We could see people from the NW Quadrant leaving, and some people in the Stretford End.
We were still sat down when they 2nd announcement came, again cause the stewards said to stay, then we heard the Code Red announcement, and everyone left, wasn't any panic, was very calm, but took us about 15mins to get out of the ground due to numbers.
Outside the ground, there was no co-ordination between stewards and police. A tannoy announcement told us to move to one of the car parks, but no one was moving, and the numbers were increasing, and people getting squashed. People just stood on the bridge looking back at the stadium instead of moving forward and allowing others to move also. I saw 3 police officers trying their best to get everyone moving, but some people would just not listen and stayed stood in the way of others trying to get away from the ground.
Must have taken us about 45 mins in total to get from our seats to the main road by North Stand