My other secret (better for people going north) is to wait on the street on arch street next to the aviary. Then drive down the newly reopened merchant street underpass when the walkers near the red lot 7A and 7B on martingdale. Pick them up at this road or the light with reedsdale. Turn left on reedsdale. Go 1 block and follow the HOV lane for 279 north. And you’re whisked out of the north side. This could also work for OP but you’d want to them exit on Camp Horne road and take mount nebo road to 79 south heading for the airport