Got a contingency plan for men with guns showing up at your cubicle and ordering you to re-route traffic to please the government?
Section 606 of the 1934 Communications Act provides for government takeover of wired and radio communication in the event of war or "other national emergency".
I'm not saying anything will happen in the next few days. Trump's state of emergency might be just talk. It might be limited to its stated purpose. It's rare for actual disasters to happen.
You've got a disaster recovery plan, though. If it's not in the next few days, a "national emergency" problem might show up sometime down the road. Does your DRP cover it?
It's hard to imagine a technical solution. This may require the company lawyer to prepare a Layer 8 contingency plan in advance.