It's not so weird, just a dusty plowed field where the wind threw up lots of dust. And these guys drive like crazy, so no wonder they all bump into each other. We had a similar accident very near our house, where the military was playing with smoke bombs, and the wind blew all the smoke across a highway... you can guess what happened...
But if this is caused by extraterrestrial rocky stuff, it's time to dive under the table.