In a well-publicized and videotaped incident in the basement cafeteria at City Hall on October 31, 1963, he was arrested and dragged upstairs by the heels.

Continually Alexander was even known to throw out wooden barriers used to racially separate whites from blacks in street cars.

In 1963, Alexander and Reverend Abraham Lincoln Davis organized a lunch-counter sit-in in the basement of New Orleans City Hall, with the goal to not leave the segregated cafeteria until they had been served a meal or arrested.

For example, white store owners located within a commercial zone on Dryades Street were prone to refuse African American employees.

[6] Also a statue of Alexander is placed across from the New Orleans city hall where he previously boycotted in 1963 to integrate the public basement cafeteria.

However, due to Hurricane Katrina the statue known as "The Crusader" was relocated and placed in front of the remodeled University Medical Center at Galvez and Canal Streets.