I don't know if there is, but there should be. We had the same experience driving back from San Antonio, where we had to bail out only 100 miles from home because we were both on the verge of driving us off the road. The next time we made that similar trip (to SMOFCon last year in Fort Worth), we deliberately chopped what outbound could have been a single day (Fernley-Las Vegas) into two (Las Vegas-Tonopah-Fernley), knowing that we'd be zonked. I would have liked to have done the same here and stopped for the night in Elko or Winnemucca, but I'd already stretched vacation days quite a bit. Nevertheless, If we'd thought we could drive no more, we probably would have stopped in Winnemucca anyway and I would have called in as "won't be able to work until Noon Monday," which probably would have worked out.