Can't say I noticed a problem, but when I got home from work yesterday both my receivers were on, which was weird. That's happened a couple times and I know they are off when I leave for work.
DirecTV sent out a signal to the boxes around lunchtime that fixed most everyone's issues. That's why your boxes were on. The folks who were watching tv before that had to do the "double reboot" to force a guide data flush. Those that were at work (like me) weren't really affected too much.