Visited today without charging.
This location is visible in eCarUp up, with the usual Emil Frey description "Für Emil Frey Kunden" - "Betriebsintern MO-FR 7-19Uhr 7 SA 7-17Uhr. I assume the "7" in the middle is a typo that should be "/" or similar.
The dealership parking lot can be freely accessed. All charging spots are clearly marked on the ground, and all have the eCarUp ad-hoc QR code. The coordinates of each charger number matches between the QR code label and the eCarUp app. AC chargers 1 and 2 only have 3 parking spots painted in front of them, so there's one missing space to use all chargers at once.
The sticker on the DC charger indicates it's an ABB Terra 124HC CC. I tried to wake up the screen to see any indicated power and how long the dealership cars had been blocking it, but it would not react to touch.
I don't know why they bother indicating their internal usage hours in the description if they don't plan to leave the chargers available outside those hours.