Conversation so far:
When did Ben Shapiro start college?
Shapiro went to Yeshiva University High School where he graduated in 2000. He graduated from the University of California, Los Angeles in 2004
Why was Ben Shapiro giving a speech at the University of California, Los Angeles ?
was scheduled to hold at the university on February 25, 2016, titled When Diversity Becomes a Problem.
Are there any other interesting aspects about the Ben Shapiro article as a speaker?
In his speeches, he often presents a conservative viewpoint on controversial subjects.
Why was Ben Shapiro's speeches considered hate speech?
Ben Shapiro said that the Left wants to “restrict freedom of speech” on college campuses by labeling it ‘hate speech,’
What was the response after Ben Shapiro's speech at the University of California, Los Angeles?
Young America's Foundation announced a lawsuit against the university, claiming that the First and Fourteenth Amendment rights of the students were violated, as well as the physical barricading of students
How did Ben Shapiro get inside pas physical barricades to give a speech at the University of California, Los Angeles?
Did Ben Shapiro evacuate the building during his speech at the University of California, Los Angeles?
When Shapiro began his speech, a protester pulled the fire alarm.
What happened next for Ben Shapiro after a protest pulled the fire alarm?
After the speech ended, Shapiro was escorted out by campus police.
What did the protesters do during Ben Shapiro's speech?
The day of the speech, student protesters formed human chains, blocking the doors to the event, and staging sit-in protests.

Question: How did the people get out?
Self-contained rewrite: How did the people attending Ben Shapiro's speech at the University of California, Los Angeles, get out?