CNN

DENVER (CNN) - The celebration of Barack Obama’s presidential nomination brought people to their feet inside INVESCO Field.

Outside it just made their feet hurt.

As 75,000-plus spectators filed out of the stadium, they walked straight into mass confusion.

Those who arrived by shuttle bus were led through an obstacle course created by law enforcement, barriers and port-a-pottys, only to find that transportation coordinators did not know where those shuttle buses were. Many were directed to different lots. Others were told to walk to their destination.

Law enforcement officers added to the confusion by blocking off routes into and out of INVESCO Field, causing pedestrians to change routes often – turning them around and around.

Most people were frantically looking for their buses, talking on cell phones, asking police for help. There were handicapped people struggling to maneuver wheelchairs and walkers through grass and down stone paths.

Some police officers admitted that they were unprepared for the situation, saying that a month was not enough time to plan for such a large event.