Anyone can cast at the ponds. Weekdays will see few people but there will most likely be some guys hanging around the cabin. Make sure to go in an check it out. Take an extra day if you can and go fish the Yuba - about 2.5 hours away.
The club is across from the Bison paddock on JFK Drive: https://maps.google.com/maps?ie=UTF-...&ved=0CLgBEPwS
Don't expect to catch much at the ponds though - it's pretty fished out.