Excuse the Title, but that's what happened yesterday. After a couple of hundred miles trip we stopped for a sandwich to take home. My wife went in, I parked away from the building, but when a close up space became available I decided to take it. When I pushed the start button with my foot pressing the brake pedal, nothing happened. No dash lights either. I tried several times, contemplating how to get a friend to come take us to our house. It was a hot day and the A/C does not work and I did not want my wife to be further stuck in the heat. And then without warning after a couple of minutes everything came on "magically", engine started, but on the 4 mile trip home I felt a slight engine miss, the engine temp guage did not work. At home when I killed the engine i re-started it, no problem, and temp guage again worked. (I have just replaced the cluster, 2nd time for the IPC). Door unlock sensor was functioning well for last week or so until this, now doesn't and locking the door takes multiple attempts as it locks and immediately unlocks. Auto start/stop hasn't worked for a year plus, Negative battery cable is super clean, but I wonder about the electronics at the battery post. '17 Titanium Any ideas?