Notwithstanding any provision of law to the contrary, whenever any state or local tax exemption is granted or authorized by the constitution, law, or rule or regulation which requires employment of, or a preference being given to the employment of, qualified Louisiana residents, "Louisiana resident" shall mean, in addition to any other requirement or qualification, that the person shall have actually resided in this state at least thirty consecutive days prior to such employment.
La. R.S. § 23:1011