I use remote desktop as well and when i go to bed i just let the scope on and make pictures.
I dont have limits set and just let the scope guide into the legs.
The only thing you hear in the morning is a click now and then when the stepper motor clicks.
It doesn't damage anything as long as you dont slew at full speed into the legs
I have seen a program that will park the scope at a certain time that you set in the program, cant remember what it was called.
PS: a very nice picture Brendan with nice resolution and colors.