Hwy 190 W, just outside of DeRidder, LA
No posted speed limit in area. Up and down speed postings along Hwy 190 W. Leaving a gas station area along an out-in-the-country road. Looked in rearview mirror to see police lights. Unmarked SUV (gray). Two females posing as cops in full body armor. Was accelerating onto open country road. No traffic. They came out of nowhere.