[vonmoltke]

Here in northern New Jersey there are many chargers that are inside municipal parking garages. Since you have to pay to enter (technically, to leave) you have to pay for parking time to use those chargers. That's obviously not an issue if you would be parking there anyway, but if you lived in the area and just wanted or needed to use the charger you'd have to pay an additional $1 - $2 per hour on top of the charges from the charger.

I'm not sure what the state of the chargers being installed at local businesses is. My local grocery store has four chargers now, but I don't recall seeing any signage about them being for customers only. They share the parking lot with the church across the street, though, so that may complicate things.