On our local news...
They talked to a couple that had recently relocated from this area, to the Houston area...
They made 3 attempts to get out, and each time turned back when they saw traffic was not moving. They said they waited in traffic as long as 4 hours without moving...
Now they will be waiting out the storm in their home.
JMHO, but A dirty bomb would cause 100X the problem. I'm not sure that anything can seriously be done to solve this problem...We can throw money at it, but will it really help anything? I don't know...