The Las Vegas Boulevard resort district (The Strip) has had an ongoing battle with the slappers whose function is to hand out material which might be of interest to adults. The biggest problem is that they get in the way of the free flow of pedestrian traffic.
Signs have been placed which state that there may be no obstructive uses of a sidewalk in the area of a painted white stripe.
Here we see two slappers, strategically stationed to greet the crowd walking near Planet Hollywood on Las Vegas Boulevard.
The slapper on the left is standing on a white stripe; the very white stripe which is to direct that nobody may stand there.
The issue has gone back and forth, with laws and challenges, etc. I don't know where it stands right now.