Blue Ghost Firefly. You can see them up close in post 2 in the first couple videos. The light from them gets funky when they get farther from the camera and invisible at distance. To your naked eye they are more visible. If this is in La. then you are at the western fringe of their range. They like warm moist climates.
Or it could be a neighbor messin' with you when ya'll are away or looking for the cat or kids smokin' cigarettes or........an alien invasion.