Fast moving orbs of changing light appearing and disappearing in front of cars

As I was driving home from Lynchburg Va around 9:55 pm I observed low flying spheres or orbs that were moving erratically at a high rate of speed and changing colors from red to blue to green. These objects appeared about a mile from Lowes and disappeared after I went through the traffic lights in front of Walmart. I looked up and behind me to ensure there were no aircraft with lights or emergency vehicles behind me. There was a car in front of me that the objects got in front of. That person/persons had to notice these objects as well. They vanished.