You could just set the cooker for 190º and let it go ,until you got home.
When you get there,double wrap them in HD foil,and place in your preheated oven at about 275º.
You should be ready to eat dinner in about 45 mins.
Or,wrap,and refrigerate,as you are pretty much thru the plateau.
You'll have about 8 lbs meat,which won't drastically warm your refrig.
Chop pork when you are ready to use,for dinner.
Microwave enough chopped pork for dinner.