I haven't tried it, as I just got my CHAdeMO adapter recently, and there are plenty of other places to do level 2 charging without the uncertainties you mention. Some Nissan dealers, like the one closest to me, Bayside Nissan in Annapolis, do not have any chargers at all, or only level 2 chargers. When I called Bayside to ask if they had a car charger, they basically claimed not to know what I was talking about, then said they don't sell LEAFs or deal with electric charging. Oh, well, the Whole Foods just up the street has a L2 charger, not that it is of much value to a Tesla driver.
Now that I have the CHAdeMO adapter, I'm a lot more interested in LEAF chargers, and pleasantly surprised to see that they are getting more common rapidly. SHEETZ gas stations in PA often have them, at least in the southern half of PA. And a large number of Nissan dealers are showing up on plugshare.com, so that must mean that they do not object to being seen as publicly available charging sites.
As always, your mileage may vary, but really, we do need to get beyond the current world of proprietary charging stations so that any EV driver can count on getting a charge wherever they need one.