Well as another here has pointed out this is licensed under the MIT license on codepen and explicitly for this at [0] then click "license" below the pen
I'm just saying as the original designer/artist I don't give permission, regardless of the MIT license (which I disagree with on CodePen but that's another story).
I get that from a "ethics" standpoint (and I won't be using it in our project like I wanted), but legally you are giving permission for anyone to use the software in any way they see fit within the MIT license.
It doesn't matter what you say here, the license is kind of final for the code it's referencing.
IIRC CodePen does allow you to license your code differently, but it requires a "pro" account.
I am a Pro and to legally avoid this I could create pens that are private but then nobody would learn anything from them and I wouldn't get them featured anywhere. So people can use them as long as they include a license which, let me assure you from bitter experience, nobody ever does.
Judging by the fact you said you won't use it, you seem to have a working moral compass - unfortunately you are a minority.
[0] http://codepen.io/chrisgannon/details/WpjXVr