There is a new 12 stall SuperCharge station opening shortly in National Harbor Maryland (just outside DC). It is a great location, right off major highways with dining, an outlet mall, a Gaylord convention center, and MGM's new casino. I do notice the charger stalls are marked differently than other places. First, only 8 spots have signs reserving for Teslas. The other 4 are marked "30 minute parking". Also, there are markings on the pavements numbering each parking spot, and a "pay to park" kiosk at the entrance. Are there other SuperCharge stations where we have to pay for parking? I was under the impression the cost of this was built into the car for those that have it free, and that the Idle fee was put in place to discourage long term parking abuse.