Aaron if you want to leave everything attached as you have said, you really need to keep the heat to a minimum.
It is good that you have some shade and the Sun is not burning on the roof.
Try and keep it under 30 i reckon, heat can do some serious damage to quality optics.
But that is just me, I am very fussy and protective of my equipment, well when i had it that is.
I have seen at Star Parties people leaving their scopes out in the burning Sun all day without any shade, I just shook my head and kept walking
It would have been 50 plus inside that Scope.
Leon