Glad your route worked out so well for you. Best wishes on everyone's safety.
It would seem in today's world of high level logistics, personal media, and computers, that State officials in these dangerous areas would be able to have some kind of plan to monitor and instruct the public, area by area, which routes to take out of danger to add some sanity to the situation. It appears they just say "run!" and leave things as free for all...why else would one road be swamped and another nearly empty.