Flew across highway in 5 seconds then went down below trees

I was driving west on the AC expressway just passed exit 9. I have a step van so high windshield. So I didn't have to bend down to look up. The object caught my eye because it was super reflective from the sun. It looked squarish, no wings. No sound. It flew across the highway so fast then went down behind the trees. I thought wow that's going to crash, or land, no plane goes that fast. But it was going away from pamona and the AC airport, there is no other airport on the other side. It was low, 1000 feet maybe. My perspective fe right to left was half a mile. So did half a mile in 5 seconds. No way I was the only one who saw it.