CALFO, I was sitting in an A300 at the north exit (RB) of the FedEx ramp. I watched the preflight inspections of the CAL jets. I never saw anybody get out of the SUV. They drove around the airplanes and then the planes taxied out and took off. The DAL guys didn't even slow down, they just took off. Meanwhile I'm sitting in my plane with a 1/2 inch of ice on my wiper blades after an application of type IV. The ice formed in just a few minutes after we were sprayed. I feel sorry for all you guys with a boatload of folks in the back. I saw a NW 320 and an AA 757 sit for a while then taxi back to the gate. We finally pulled the plug and went to a hotel after a ORD-EWR leg and 9 hours in the airplane.