Hi Steve. Had a caliper seize on my 86 F250 a couple of years ago. Sure did get the rotor warm.
Good thing I had the window down so I didn't really go that far with it. I was rolling down a really rough steep seasonal road when it happened. When I got down to the main road I could definately tell by the steering pull etc... I only went about a mile up to dear 'ol dad's house and got a hammer and freed it up before I went towards home.