Except for when it is code. If you do something that is legal under the letter of the law or when the law is ambiguous you are supposed to be given the benefit of the doubt and granted leniency. If this wasn't the case then lawmakers would have no reason to write laws precisely.
It's the other situation where law stops being code. If you do something that is technically illegal but probably oughtn't be then the law can be reinterpreted in your favor.
Assuming you followed the absolute letter of the law with your totally-not-a-brothel then you would be fine (until the law is amended).
My point is that laws are often intentionally not written precisely, because it's impossible to enumerate every type of violation in advance. Looking at my own state's prostitution law, you would need to define the following things to get a precise law:
"money or its equivalent"
"offers"
"adultery"
"fornication"
etc.
The law is written in terms of broad concepts that a judge can interpret. In most cases there is no such thing as "absolute letter of the law", partly because English makes that impossible, but mostly because legislating such strict specific definitions would be a bad idea. I think the impossibility of bug-free software makes it clear that we wouldn't want laws written like code.
It's disappointing how many people here imagine that an incredibly transparent ruse will get them out of legal difficulties no problem. It's like they can't conceive that yes, other people have thought of it before, and yes, it's transparently obvious, and no, you can't get away with a crime with a "gotcha!".
It's because of things like the following scenario, which as a 17 year old with a lead foot, I was "lucky" enough to have happen to me.
A police trooper pulled me over for ~80 in a 65 (deserted highway at night). He somehow transposed the last two numbers in my license plate, so I obviously assumed I was home free. Until, while I was on the stand, the judge just looked at me for about 10 seconds, said "Were you driving the car?" "[pause] Yes, your honor." "[gavel slam] Guilty."
It's the other situation where law stops being code. If you do something that is technically illegal but probably oughtn't be then the law can be reinterpreted in your favor.
Assuming you followed the absolute letter of the law with your totally-not-a-brothel then you would be fine (until the law is amended).