Let's take a look at each of the things the user has turned off.
It blocks ads, this really won't stop Google Analytics (GA) from measuring your data. I believe the only data GA wont get is Demographics and Interests in the Audience section.
Disables cookies. This won't stop Google Analytics either! What it will do however, is that every time this aforementioned user visits the site - he would be treated as a new user (obviously after closing the previous browser instance).
The browser option of respect privacy is not really respected by Google Analytics, unless the implementation of the GA script includes that option. For this, the website owner has to include one more script in their website code -
< script async src="//storage.googleapis.com/outfox/dnt_min.js">
And on top of this, while the GA tracker is being initialized, this code needs to be fired -
ga('require','dnt');
If you are a user and want to opt-out of tracking, you could always use the GA Opt-out Browser Extension by Google.