The federal harboring law:
https://www.law.cornell.edu/uscode/text/8/1324
http://legal-dictionary.thefreedictionary.com/harbor
If shelter/lodging/food is provided, then it would probably be a crime.
Did the scholarship including housing or just tuition?
The statute I cited seems to indicate that officials of sanctuary cities are committing federal crimes.
I believe the penalty should be five years.
I believe California law requires strict pension forfeiture.
http://www.lacera.com/benefits/pension_forfeiture.html