Incredibly bright lights pointing backwards of craft direction

I finished playing fetch with my dog on the field at the very back of the park. By this time no one else was there. I put my dog in the back and heard animals in the woods going crazy. This made me nervous since I was there alone. I glanced back at the field and the sky and saw nothing. I was looking for animals and at the bats flying around making noise. I opened the front passenger door to fill my dogs water bowl. I closed his door in case something came out of the woods even though I hadn’t buckled him in yet. While drinking water I looked up and saw it. Incredibly bright lights that could easily light up the woods even with being so far away. The lights shifted twice, but always stayed behind pointing backward of the direction the craft moved. At times if slowed down almost to a stop. Then it would continue moving forward. I grabbed my phone and started recording. As line of sight appeared to become covered by trees, I hopped in the car. I could still see it while traveling to the front parking lot of the park. I pulled over while leaning forward and staring up. It was still there. I got out and grabbed my phone again. When I looked up as soon as hopping up it was gone. It was about 15 seconds from the back lot to the front. 2 other friends now say they saw it. One from DC and one from California.