Now, I won't call this blatant, but...
...take a look at what Campusfood is sending via email.
Wait..."grass"...you don't think they're talking about?....oh, now I get it!
This is by no means the first time Campusfood has mined the rich trove that is April 20th.
By the way, wouldn't that be the most ineffectual road sign in history? Never mind that the meaning isn't that clear (potheads lying in the road? malaise ahead?), but the color of the sign blends in perfectly with the scenery.