I was driving west bound on the main highway that goes across the state and i witnessed a huge comet looking type thing burst across the sky then explode into a bunch of orbs or circular crafts that scattered across each other then disappeared. about 20-30 minutes later i felt like something was watching me so i looked out my window and saw an orb floating closer to my vehicle. i kept driving and started taking pictures, then before i knew it i was looking at some sort of triangular craft that had lights around the sides and a blue light underneath the carriage area. the craft hovered and followed me for about 3-4 hours until i got to the border of nebraska then disappeared. during the experience i also noted that maybe 20-30 minutes after it was dark there was helicopter lights circling or following the craft all the way until i got to the border, not too sure if it was military or not? pictures are listed in the order i took them. the first three shows the orb as it got closer to my vehicle. the last three pictures shows the craft (unidentifiable flying object).