Look for a bunch for frequencies in use on Lowband (33-34 & 45-47mhz) in particular. Most of the wackers use these frequencies to talk to their buddies. As far as the Farm Show Complex, quite honestly very boring to listen to unless you want to hear "Hey Juan they need more soft pretzels". Of course there is always FRS as well....
Surrounding areas to scan are Lancaster, Lebanon, York, and Hersheypark area....