Bed-in ride.. did you brake normally, or did you actually do the repeated hard stops from 60mph to 10mph? The latter would heat up the pads and rotor. Normally some brake drag is normal, but you should still be able to rotate the front wheel by hand when it's off the ground. Did you check to see if the pads are seated fully and correctly? Also check to see if the brake reservoir is not overfilled and perhaps exerting some residual pressure.