FYI warrant and probable cause are not required for strip searches. Reasonable suspicion is all that is required. This was as of 3-4 years ago, unknown if it has changed lately due to our ever wise 9th circuit appeals court judges.
The video is pretty bad but there has always been rumors of Leo corruption in Louisiana due to the low wages. Hell even ca CDC officers are on some payrolls to let stuff slide through and they make decent $.
Just about anyone can get a cell phone at a ca prison. County Jail is a bit tougher but they get caught every once in a while.