If you used it for fair-use purposes, it could well have been legal. The only way to find out for sure would be to have them sue you, and then successfully or u

If you used it for fair-use purposes, it could well have been legal. The only way to find out for sure would be to have them sue you, and then successfully or unsuccessfully defend yourself with a fair use argument. Please keep in mind that the law is a kind of stochastic process; "how illegal" something is dependent on how many times someone is found liable for it, which is something that takes a bunch of lawsuits to actually know, and each lawsuit is unique. It's not a computer program where if(X && Y && !Z) then punishment(); (well it sort of is, but X and Y and Z aren't definite boolean values, but things that have to be estimated based on evidence). (I am not a lawyer and this is not legal advice)