Happened to me. DPF was full at 30000 they replaced it with a new one, flashed in the high idle and wrapped the sensor just before the DPF with some heat wrap stuff and so far all is good again.
FYI...If it is driveable, run the hell out of it all the way to the dealership
it has had a AFE stage 2, smarty with delete tune, and 5'' turbo back on it from the day after i got it. i think it had 216miles on it before it change every thing out. it now has 4096miles. it started done it around 3974.