Discription of Events: It was a 18 wheeler and pulling a trailor with no information on trailer. I believe it had Sanitation on the side of the cab, I could not get all info I did get license plate would have clipped front of my car on I40 East if I had not slammed on brakes. I saw him do the same thing to at least 4 more cars as I was trying to get up beside him to get name on side of cab. Then he went from far right lane all the way across to left lane. If other cars were not paying attention it would have been a big pile up on I 40 East today.