I was sort of waiting to see who might want to step up to the speaker's stand here, but it seems nobody wants to stick their neck out on this one, so how about another old man trying his luck that his old brain is still functioning in some fashion of reasonable.
I strongly suspect that fella who offered that there is some sort of law about covers or some such thing related to windows is trying to pull a fast one.
I am no lawyer, so we'll settle that question right off. But the law is usually not so loose that something about window covers can get on the books.
I mean, how in the heck would you regulate something like this, if it were true? What size windows would this apply to? Facing in which direction in relation to another window? What kind of cover?
That is just three, but if I were to really dig deep I could write a full term paper to get my degree for comedy communications.
Now I suppose somebody will do some serious digging and actually find some sort of law and if that happens you are all going to see what I can do with the English language when some really weird law gets uncovered.
See? The professor would be giving me credit for that great lead right there.
But then I would lose credit for the use of "right there".