Because I don't think anyone's gonna beat a motorcycle driving past our booths, seeing the back employee entrance, and thinking that it's a good idea to swoop in from the wrong direction while I've got cars coming for my booth.

He's lucky the other drivers were paying attention. Because motorcycles don't tend to win in head-ons.

Green and blue are normal, acceptable, directions of travel. Red is this idiot.

...sometimes when you go against the crowd, you're just stupid, my dude.

Yep

I've been there before...there are big signs....

and arrows

big arrows

And have you ever seen a toll booth/ticket booth/take-out window that isn't one way???