This is EXACTLY what has been happening to me for the past two days after the weather dipped into the 20s at night.
4Runner had to be jump started as well in the morning.
I thought maybe my battery needed to be charged/replaced (currently trickle charging as we speak)
I am going to...
Nacimiento Road to Coast Ridge Trail to Pewitt Ridge. I can see why Big Sur locals are so upset though, there was a lot of trash up there. My girlfriend and I filled up about half a Trasharoo of other peoples trash before we left.