Yeah, you are a flatlander (lol). Not being in philly is good, these bikes arent the most secure things in the world to park and walk away from. I don't know where you would ride, I guess you could head north towards the poconos and ride around all the NY/NJ transplants. I just wouldn't head into amish country. You really have to be mindful of everycurve and intersection, moreso than normal I guess. Before the safety police come to get me, yes look through the curve yada yada, never go too fast into a curve, gotcha, you always have to be aware of your surroundings bingo. I just don't like riding where there are guaranteed hazards in every direction, not as fun. It isn't just the amish buggies, it is the tourists and farm machinery on the road. Besides, one buggy with any traffic and you are doing 15 mph.
For reference my job transfered to the burbs of philly, I commuted from York to there daily (before I transferred back out west and moved). Everything being equal, 76 isn't that bad, just be mindful of the governor's revenue generators parked on the side of the road.
Enjoy the ride, have fun. Maybe someone from that neck of the woods will chime in with a nice ride in that area.