Brake Disc Caliper problems of the 2012 Honda Pilot

Rear brake pads rusted solidly to calipers. Inoperative. Front brakes pads rusted but still operating. Only 23,000 miles on vehicle. A loud screeching noise alerted me to a problem as I backed out of my garage. Took vehicle to mechanic who test drove car and knew what problem was. He took off all 4 wheels ,pried pads loose from calipers, sanded off rust, lubed and reinstalled parts. He informed me that I needed new calipers, pads and hardware. I called dealer and was told that being out of warranty, that they could do nothing for me. I then called Honda motor CO. I was told that vehicle was out of warranty and they could do nothing for me. To me,this seemed a safety issue more than a warranty issue.