I agree with the folks who said to change it (except for the 2 miles post). Get the contaminated oil out of there (and change the other fluids too) and put it away for the winter. Just did mine this last weekend (sad day for sure) but you'd be safe knowing you have fresh fluids for the long winter nap.
Search the forum for the rest of the winterizing (fuel stabilizer, battery tender, steel wool in the exhaust, etc.).
Sometimes I feel like an idiot. But I am an idiot, so it kinda works out!