Visited on May 21 and did a short charge on the Alpitronic charger, no issue.
The chargers are freely accessible in front of the dealership. There's no gate, no signage, no painted parking spots.
The Alpitronic charger doesn't have any QR code. Based on the live data, 137873 seems to be the left connector as it's the one that showed occupied while I used it. By elimination and consistent with the number sequence, 137875 must be the AC connector on the Alpitronic.
On Swisscharge, the AC connector on the ABB unit is listed as 43kW, but that's wrong. It's a 32A and the spec sticker on the charger shows it was delivered like this from factory.