Simmons, 57, was treated at the Baton Rouge General after he was shot in the shoulder during the incident that happened Sunday, July 17. He was released Thursday after undergoing at least two surgeries.
People lined the halls of the hospital and cheered as Simmons was escorted out with his wife and a fellow deputy.
Simmons has served as a law enforcement officer for 23 years. He was one of six law enforcement officers struck during the gunfire.
Deputy Nicholas Tullier, 41, is one of five officers who were transported to Our Lady of the Lake Hospital where he remains in critical condition. He has 18 years of service with the office.
A third unnamed Baton Rouge police officer was released from the hospital the day after the shooting.
Funeral services have been announced for the three law enforcement officers who were killed. They include Officer Matthew Gerald, 41, and Montrell Jackson, 32, from the Baton Rouge Police Department, and Deputy Brad Garafola, 45, with the East Baton Rouge Parish Sheriff’s Office.