Had a customer come in with an Explorer this week. Would only do 10 mph. The the rear wheel bearing came apart and the brakes were metal to metal. She had been letting her 19 year old son drive it. The ABS system shut it down.
Shame on you. FYI, that has generated some heat, so be sure to replace or rebuild the calipers. If not you will be doing the pads and rotors in the near future again.