If continuing on a different ticket, try to go back on not the next flight back, but the one after (something like a 2+ hour turnaround) just to be safe. If you have club access, a long connection is painless anyway.

If you anticipate running into problems, explain your situation to the departing GA/club agent. Your rights are limited in these situations, so appeal to their goodwill, and they should take care of you (e.g., send you to a different destination for turnaround, reroute your return, or let you drop segments).