Isn’t this against the US constitution? Razor wire along the state border and checkpoints on roads that cross the state border are kind of nuts. I read a comment joking that the wire and road checkpoints were to keep Texan women from escaping to New Mexico, which got a bitter laugh out of me.
“the people of each state shall have free ingress and regress to and from any other state”
https://www.archives.gov/milestone-documents/articles-of-confederation