Before they do anything that hurts, they will have to take you to court.
No, they don't.
http://www.nolo.com/legal-encyclopedia/if-wages-are-garnished-rights-33050.htmlWage Garnishments for Student Loans
The U.S. Department of Education (or any agency trying to collect a student loan on its behalf) can garnish up to 15% of your pay if you are in default on a student loan. No lawsuit or court order is required for this type of garnishment; if you are in default, your wages can be garnished.Haha yeah ... show up to my place in the boonies and try to take my property without a court order. I forgot the rest of the world is a bunch of unarmed pansies.
Then the next day you get shot dead by ATF agents. That is the realistic outcome of your fantasy.