The right of a person to an annuity, a retirement allowance, or benefit, or to the return of contributions, or to any optional benefit or any other right accrued or accruing to any person under the provisions of this Part, and the monies in the system created by this Part, are hereby exempt from any state or municipal tax, and exempt from levy and sale, garnishment, attachment, or any other process whatsoever, except as provided in R.S. 11:292, and shall be unassignable except as in this Part specifically otherwise provided.
La. Consolidated Public Retirement § 11:3014