The good news is that everything worked perfectly last night. The scope did all of its imaging and parked itself when completed. I got up this morning and closed the roof, shut everything down, and was pretty happy with my final Iris Nebula result. Earlier this evening I tried "Dusk Flats" with CCDAP5, and they seemed to work out ok. I started the session a little late so it didn't have time to take many, but I'll definitely be trying again!
On a negative note though my guiding was acting up again tonight, which foiled another perfect all-night imaging session.