Highland Haven Creekside Inn - Tesla Destination EV Charging Stations

This was shown as free charging, and when I called I asked if I needed to be a guest or if I could just come and charge - they confirmed I could just come and charge. But when I got there, I found out it's $15 to charge...and it is estimated to take 6 hours, so since I'm not going to charge for 6 hours, I think I'll really be overpaying a lot for this!