Vineyards and all the other regional business play a part in the take up of Electric vehicles in this country, now unless the operators of such an establishment are EV fanatics it's highly likely theyve installed a charging point to attract customers, and well played too them I say, just like operators offering pay TV, free wifi or any other hook EV Chargers will become the norm.
even if the business charge cost price for the electricity I'd be happy to pay for it, a Model S costs about $40-$60 less per 400 km than a petrol car, I would be more than happy to spend that savings at the establishment that provided the charge facility in the first place as long as the service was reasonable.