The Cal charges an upfront $3 a day (I think $5 on Friday and Saturday) fee to park in their (parking structure) parking lot. You will need to get a receipt from a restaurant or for your play and you get your $3 back when you exit. Not sure if you need go to the player's card booth to get your receipt for your play. Be aware that this is for one entry, (non hotel guest) if you leave and return you again have to pay $3 ($5) to park again. Hotel guests upon asking will get a free parking card from the front desk. During certain times of the day/week they only allow hotel guests to park there, I guess it's because the lot fills up. I think specifically Friday and Saturday nights after 7 pm they only allow hotel guests to park in their lot (unless the lot isn't filled up). Basically you drive up to the gate and pay your $3 and the attendant will open the gate and allow you in. When you return you need to show your restaurant or play receipt and the attendant will return your $3. There is no gate when you exit so nothing is needed when leaving (unless you had a receipt, they will give you back your $3). If you are a sapphire or higher card holder you just show your card when entering and the attendant will open the gate to let you through. The attendant didn't even examine the card or the name on the card. MSS had a similar policy except that they don't have an attendant working all the time.