>>...So roadblocks at the state line...<<
Nope. Transponders. Just like the ones for toll roads now (EZ-Pass, SunPass etc.). No vaccine, no transponder. Get caught on license plate camera going through without one you get fined or arrested.
Somewhere tucked away in the yuge infrastructure bill is probably the money to implement this.
I think its logistically impossible to enforce and will simply enrage the general public. This is all scare talk. At least its starting to achieve Trump’s goal of waking 80% up before the military steps in.
The soon ex-Goobernor of New York instituted a cordon sanitaire on the city of New Rochelle in the second week of March 2020 as a test case to implement it on Manhattan. HealthAffairs planted a Mockingbird piece in support the same day, and Fauxi had the made the rounds of talking sheds that Sunday saying "anything is possible".
Note that the Health Affairs article broke ranks a bit and admitted prior restraint of interstate travel is patently unconstitutional and even discussed Jew Ho v. Williamson in some useful detail. Can't make this shit up.