Slight correction: Members of all seven uniformed services are eligible to stay/purchase tickets at SOG, not just "military".
In addition to the Army, Navy, Air Force, and Marines, this courtesy is extended to members of the Coast Guard, Commissioned Corps of the Public Health Service, and Commissioned Corps of the National Oceanic and Atmospheric Administration who are on active duty.
If you happain to be a member of one of the seven uniformed services who is a legal resident of Florida (even if you are currently stationed elsewhere), you are eligible for the Florida Resident's Annual Passes. But be prepared to show a Florida Driver's license.