*blink* For the PA one, they're telling Philly residents to bug out to the Sproul. Which is friggin middle of nowhere, like "1 person per square mile" nowhere. Think "upper mid west, with significantly more terrain variation" nowhere. I don't think Philly residents would be welcome there, and I doubt they'd survive well in the PA Wilderness.
That's easily a 6 hour trip. Honestly, if you took out the Northwest Extension of the Turnpike, Schuylkill Expressway and Route 1, Philly would be damn hard to escape. Back when I was in the PA Guard, I recommended said routes be destroyed in event of significant catastrophe, forcing the population into NJ and DE. In reality, three separate car accidents could do just that IRL.