I have to say that I am amazed that folks would worry so much about parking a car for a time as short as two nights. I would have not given it a thought, driven there and just parked on the street in a neighborhood with on street parking.

I find it is hard to imagine that you wouldn't be able to get permission to park somewhere if that worried you. Maybe try a bike shop? There are a dozen or so within 10 miles of Hershey. I really can't imagine that a stop at most bike shops wouldn't yield a place to park either at the shop or at the home of one of the employees.