White smoke at warm start

My Ecoboost Mustang has blown white smoke after being driven and parked for short period of time. When leaving Cars n Coffee, my car will blow white smoke at startup. It only does this after I've driven it about 20 miles and parked for 2 hours. I've read in some forums that this could be a Turbo leak or my Turbo is starting to go out? Any feedback and recommendations would be greatly appreciated.