The easiest way for your parents is for you to keep hiking to Deep Gap, NC, and take the Kimsey Creek Trail down to the Standing Indian Campground. They can pick you up at the Backcountry Info Center at the campground (trailhead, parking lot, etc.)

There is a forest service road to Deep Gap. If the gate is open, they could drive up and pick you up there. The gate is several miles up the road, though, and it's best to call the USFS and check before driving up there.

That's a great section, btw, so enjoy it.
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--Ken B