I stopped and charged at the Terre Haute SC in Indiana a couple of times over this past weekend. I noticed on my receipt that I was charged $0.13 min for Power Tier 1 and $0.26 min for Power Tier 2. All of my other receipts have just the Power Tier 1 rate/charge. Any insights as to why this is? Did I stay plugged in to the Super Charger too long? I've attached a snap shot of my receipt.