I know absolutely nothing about the Whistle Pig hunt, but I know a few small things about Pittsburgh, even though I don't live there....I do however have several friends who do, and I've spent a lot of time there.
Your "egg hunt" reference jogged my memory, and lo---if it wasn't in Wiki:
Moustache Competition, November 2006
The moustache competition is a group collaborative effort created by a number of WPTS-FM station staff. The idea is to see who might grow the most impressive moustache over the month of November. The idea is based on Jay Della Valle's The Glorious Mustache Challenge. All people are invited to attend by merely growing a moustache. The Fu Manchu, the Natural moustache, and The Handlebar Moustache are all options that various entrants are beginning to grow on their upper lips. The competition is open to anyone at the University of Pittsburgh. This contest follows the 2005 Egg Hunt contest, which won that year's College Broadcasters Inc. award for best station promotion.
Also: the Grateful Dead have a DVD out which was taped in Pittsburgh just prior to their keyboard player's death from overdose. They've played 3 Rivers just about every year since gods know when!
And the 'old rocker'--could they be talking about Donny Iris?
Anyway, hope this helps!