It absolutely will fly. There are centuries of Supreme Court precedent on this very topic in the US, sometimes under difficult circumstances. Some rights cannot

It absolutely will fly. There are centuries of Supreme Court precedent on this very topic in the US, sometimes under difficult circumstances. Some rights cannot be circumscribed under any circumstances regardless of consequences except in very narrow ways, there are no exceptions for emergencies. The right to travel freely within the US is recognized as one such right. That's like telling Americans that we'll temporarily ban free speech or ban guns -- it isn't negotiable to a large portion of the population and, furthermore, States have considerable power to make any such bans unenforceable. The few historical examples where the courts let enforcement of elementary rights slide for a bit due to "emergency" are almost universally national embarrassments because of the abuses that followed. Judges aren't keen to be named and shamed as one of those people that let that happen for the sake of expediency. Maybe in other countries but not in the US. It is a fundamental misunderstanding of how individual rights work in the US.