Re-pitching will not do much unless you have a big amount of yeast to pitch. It is over 7% at this time.
Adding anything will just extend the ferment time.
I think you have 2 options. My vote is for the second one:
1) Wait a few days and see if FG is stable and then bottle as is. Risk of bottle bombs if it is not close to finishing. I'f concerned, bottle with about half the priming sugar you would normally use.
2) It went down .002 in the last week. It is probably still slowly working. Leave it alone and leave instructions for someone to occasionally top-up the airlock with some vodka. It will be ready when you get back.
I don't know how long you will be away for, but beer will sit fine for a long time. I have one in my basement that is now over 30 weeks in secondary. With a CO2 blanket (from fermentation) and a topped-up airlock, beer can keep almost indefinitely. I have a number of sours that are well over a year, but they are different animals.