don't think it's likely to find mephisto, or anything autoflower in a coffeeshop.
from what I know, most commercial growing here is done indoor with clones. a lot of what coffeeshops have are the same well-known commercial strains, you'll often see the same names popping up on menu's over and over again(still difference in quality though, based on who grew it, and could be not every strain-name is truthfull). stuff like amnesia, silver haze, northern lights, powerplant, S5 etc.
lately seeing some more american strains too(kushes, gorilla glue), but those are more common in amsterdam, although since a few months my local coffeeshop also has gorilla glue(don't live in amsterdam, but elsewhere in the netherlands).
autoflowers just aren't interesting for those commercial growers since they would have to work with seeds instead of clones. and there are no autoflowers that are so famous that customers would pay more for the name(sooner opposite I think, still plenty of stoners with the prejudice that autoflowers are less potent).