Visited on June 5 and did a short charge with Agrola E-Mob app.
The chargers are inside the "fenaco Areal". There are no gates preventing access, but at the entrance it says drive-through forbidden and no parking without vignette.
The location doesn't appear in the map of locations on Agrola or PowerUp websites. But in the E-Mob app it appears just like any regular Agrola AC location. So it's unclear whether this one is also open to the public or not.