Parking should be plentiful and free on Saturday. Enter through the Alumni Avenue entrance, and turn right to find parking in the lower lot (just as you enter the parking area). Walk up to the quad, and the library building will be to your right. If you have any trouble with parking on campus, please know that off-campus parking is plentiful, free, and in some cases closer to the library.
Breakfast, lunch, and a light reception will be provided, but if you want to explore the local cafe/culinary scene, you could do worse than to visit:
Cafe de Leche