Drivers do not make change. Discounted tickets are available at many locations. Tickets are good on busses and on the MAX with unlimited transfers within a time period from first boarding. Time to or from PSU is a bit over 45 minutes at most times. PSU by Car Parking is at a premium.
Street parking is metered and unavailable during much of the day.
The CS department has one guest space. The EE visitor's space is on the right, against the wall as you enter the garage. The CS visitor's space is space 75 against the back wall. Get the visitors space permit from your host or from the department office and place it in your car as soon as you arrive. PSU has limited visitor parking in its other parking garages.