For those who are curious, I heard at work today in op's that it was aircraft N696SW that slid off at SMF. Today it was ferried from SMF to PHX for maintenance and will be returned to service within a week.
Yesterday, around 1:30pm, 696 was taxiing to the gate at SMF from SAN on a wet runway, when the brakes were applied to turn off the taxiway. The plane slid into the mud. Nobody was hurt and the pax were deplaned there. I heard today in Op's that the plane went to PHX this afternoon for some maintenance. Take care