1. Yes. Make sure you have the voucher ready when you pull up to the tolls (it has a barcode on it).
2. Yes, but you can only use the voucher once for entry into parking and once for entry into the park before you get it processed into the ID card. It won't work a second time.
My only objection to the Coca-Cola Marketplace is that I wasn't expecting a stand branded as "Coca-Cola" to be selling healthy food. Imagine my shock when I saw fruit there!
Food stands (or at least Street Funnel Cakes) seemed to have a deal with $5 for all-day refills for refillable cups. Anyone else see that, or is there small print I didn't see?