Ask an OC Insider
All you have to do is board the bus, pay the $3 (2019 Rate), and hold on to the pass until 6:00 am the next day!
Your bus pass is $3 (2019 Rate) and given to you on the bus by the driver.
When you get on the bus you pay and the driver will give you your pass. Find out more about the buses in OC here.