I think you are 100% correct...the Steeler Nation will be out in force...and Steeler fans do travel well. It is about a 5 hour drive (give or take) to the Motor City from Pgh...so expect alot of Towels!!!
If your boys play like they did today they probably do win.
BTW, It's less than 3 hours to Detroit from here. It is tempting to head on up.