Visited on May 20.
I can confirm that Intercharge Direct works. My battery was almost full, but I was able to charge 1.9kWh for 0.10CHF. The amount of kWh doesn't even appear on the receipt, there's just one line for the "start fee".
The Intercharge Direct QR codes are however not installed on the charger, you have to manually type the URL, or use the auto-generated links on my map.
The intended ad-hoc price is 75ct/kWh+15ct/min via credit card. This is also the price for PLUG'N'ROLL members. That's outrageous. With AVIA Volt it's 89ct/kWh.
I was unable to locate the AC chargers. Seeing there are no recent sessions on them, I wonder if they installed a temporary AC unit before the DC, and the IDs remained visible? Given they have the same prefix, they must be at the same location.