No issues since new, no tuning other than factory MPPK. It sounds like your A/C was "freezing up" due to low freon - you may want to have the A/C checked for that. Your other incidents may be due to your JB tune and its required wiring.
Regarding your "averaging 95 MPH" trip from Houston to Baton Rouge, I'll assume you took Interstate 10? Driving that speed on that lousy stretch of road, and especially "topping out" is nothing short of crazy, what with LA state police constantly on the hunt for out-of-state speeders. Were you driving at 3AM?
I ask this only because I recently moved from SA to the Wlimington, NC area and drove I-10 from SA to Mobile, AL. As soon as I crossed the state line into LA, the pavement became very rough and the journey was pretty unpleasant until crossing into AL. Can't imagine driving 95mph on that surface!