Lil Truckr,
The same thing happened to me. Same symtoms and all. Our coach quit near San Antonio and started again before I came to a stop. This happened two more times. The forth time it quit I was at an exit an pulled off with a dead engine. I sat there for a minute and said 'well, we have Good Sam Road Care'. I tried to start the engine one more time and it started. Did not have a problem all the way to out destination Fort Worth. Turns out the a battery disconnect I had installed on the battery was intermittently losing contact. I found this out quite by accident but removed the disconnect and have not had any problems since. Driving a '99 Ford V10 gas banger.