Nearly all charters and transportation will take you back to Sergeant Bluff, the starting point of the ride. I know of no service that will take you back to a particular city along the route. Your best bet is have a friend meet you and drive you back. Second best bet is to advertise on here later this summer and maybe someone will be in the same boat and have room for you. I put an add on craigslist once to find a mid week driver to get me where I needed to be and for $100 I found it. Good luck.