The postmaster has no property rights over the post office. The forest ranger has no property rights over the forests. The traffic cop has no property rights to the roads. The president has no property rights over "Area 51"(nor do any of his military goons) . Nor do any government employees have any authority to administer the property rights of government, because those rights don't exist. Period. Government property is stolen property and does not belong to the thief or his gang, nor their descendants. It is No Man's Land.
That doesn't mean government enforcers won't murder or kidnap you if you violate those imaginary government property rights, or any terms thereof, but when they do, it is an unvarnished murder or kidnapping. It is exactly like if a crook broke into your house, claimed it as his own, and then killed you when you returned home. So be careful of government thugs enforcing their deadly delusions.