The Department of Alcoholic Beverage Control said 20-year-old Jonathan Ortiz Zaragoza was "repeatedly served alcohol'' at Las Tres Catrinas without his ID ever being checked.
Ortiz Zaragoza died in a crash after leaving the restaurant on Jan. 16, 2022.
A subsequent investigation into how he obtained alcohol led to ABC filing disciplinary action against the restaurant.
An ABC news release states Las Tres Catrinas agreed to a 30-day suspension of its license. If any other violations occur over the next year, the restaurant's liquor license could be revoked permanently.
"Preventing underage drinking is a public safety priority,'' said ABC Director Eric Hirata. ``We want to remind licensees to check IDs carefully to help keep our youth and communities safe.''