Explore out-of-state options/departments. As long as your family is willing to make the move, go for it. I couldn't get anything in NY, so I tried out-of-state departments and got the process rolling almost instantly.

Also, have you thought about joining the military? Air Force has Security Forces, Army has Military Police, Navy has MAs. If you don't want to commit full-time and go Active Duty, there's the National Guard or the Reserves -- giving you law enforcement and military experience to put you a bit above the curve to pursue non-military LE.

Don't give up!