What's That Again - Shirtless?

Remember the sign from the 60's that stores used to keep improperly dressed people out? It featured a big NO then had a list going down the right like this:

NO Shirt
Shoes
Service

It seems that some Wisconsin retailers just don't get how that sign really works - here's the sign that we've been seeing around here lately (as if anyone would go shirtless at 30 below...)

NO Dogs
Shirts
Shoes

So are they really saying that shirts and shoes are prohibited in their store? Perhaps the vice squad may have some interest here...