I saw this going the other way on the Ohio Turnpike on the way from DC to Cleveland a couple weeks ago. It wasn't 'til it was nearly past that I noticed the obviously Alfa triangular grilles. They were a bit tall and lumpy - perhaps Mitos, though I thought they looked a bit large for that.
I reckon this is a Dodge/Alfa black-ops project?
and tell us again why you didn't quickly turn around, using one of those "authorized vehicles only" cut-throughs, and catch back up to it and take pictures and/or flag the driver to pull over?
I'd been lulled into a comatose state by the Pennsylvania and Ohio turnpikes.
ZZZzzzzzzzzz...
I have seen a few truck loads over the last two years pulling out of the Port of Baltimore. They sure are purdy 
I imagine they are going to Auburn Hills to be used as mules for upcoming Chrysler vehicles.