Visited on June 10 and did a short charge with AVIA Volt RFID.
This time I made sure to visit during business hours. The chargers are indeed inside the Coop customer parking. The chargers themselves appear to be open to the public at large, but they did not specify any closing hours. Also unclear if you could leave your car charging overnight and pick it up the next day when the parking re-opens.
I was really scratching my head trying to find the chargers. They are immediately left at the entrance, which is nice for access, but also means they are completely invisible when you're looking around for them.
The parking is divided into a private section and a Coop section, but there are also some parking spaces labelled Coop in the private section. Until I spotted the chargers in the customer section I was starting to wonder whether they were in the private section that requires a key.
Charger 50 is on the left, 51 on the right. The mapping is confirmed by the live data showing the correct charger occupied while I was there. Both have attached cables.
When leaving, Google Maps directed me to turn left. It seems like this road is through a private property, though there isn't any sign or gate at all in that direction. In the other direction there seems to be forbidden access signs.