I just checked with both the Humboldt County jail staff, who also checked with the Sgt. on duty.
Have contacted CHP for comment. Sgt. Abshire sent this response:
"The press release was written in anticipation of booking into jail. And then, there was an unexpected medical emergency during the evaluation at the hospital, and he was released to the hospital. I realize that was not in the press release."
Mar 9, 2017
DUI not a factor in traffic collision today, female victim identified as Shirley Hoyt
After being examined at the hospital, Larry Nielsen was booked into the Humboldt County jail including charges of felony hit and run and vehicular manslaughter.
Incident being investigated. Press relesse says Nielsen "may have been suffering from an acute medical condition" that may have been a factor in the collision.