The census- just say 'huh?'
Soon armies of civic-minded busybodies will flow across the land like locusts. They will be poking their noses into every aspect of your life, and getting GPS coordinates for every front door.
Yes, I realize the Constitution (RIP) authorizes, in a flimsy way, a periodic census of how many people live in the "nation" (and NOTHING else). Why is the information needed? Supposedly for knowing how to apportion the "representatives" and enable other functions of "voting" and governmental meddling. So what? When the Constitution is wrong, it is really wrong. Seems like a good reason to avoid these nosy meddlers to me.
An amusing "legal" fact is that it is "illegal" to refuse to answer the questions that it is "unconstitutional" for them to ask. What happens when an irresistible force encounters an immovable object?
While you can't legally shoot these "trespassers with clipboards", you can treat them like door to door religion-pushers. Ignore, avoid, and/or confound them at every turn. You would do well to avoid answering any questions for the census-takers if you can manage it. Become an absolute simpleton; completely unable to comprehend the questions. Or suddenly convert to Jediism and remember the family of Jawas living with you and include them in your answers. And you did marry your cat last year, didn't you?
If you really believe it, it is "true enough" for the state, right? After all, that's how they get around the limits on their authority to enact "laws" they really, REALLY want.