As government cannot protect you in real time (Castle Rock v. Gonzales 2005), it is better to have them simply protecting rights. Justice Warren wrote in Edwards v. California (1969) that Americans have a fundamental right to travel, so yes, interstate travel is protected, contrary to the opinions of naysayers during this recent pandemic. Governments have no authority to shut down anything, except through canceling licenses, which is a whole other issue. Well, except church meetings. In the infamous Reynolds v. United States (1879), the court ruled that while the First Amendment protects your beliefs, it does not protect you from acting on them. More than likely you haven't even heard of the case, unless you are a member of The Church of Jesus Christ of Latter Day Saints. Maybe not even then.