Can I use use Visual Studio 2015 without an Internet connection?

Although I tend to be of the "answer is never no" school, in consideration of the deafening silence here and my empty google searches there, I'm answering that there is currently no practical way of divorcing yourself from the Internet, and more specifically Microsoft resources on the Internet, while installing and using Visual Studio 2015 Enterprise. A disappointing result.

I'll be happy to receive an update and be proven wrong. Visual Studio 2015 Enterprise has a lot of promise, but it's also missing valuable utility because there is no published method of making it independent.