No, they are not worried about it. Raw milk sales are legal in Pennsylvania. I think they busted them for selling it across state lines.
However, it's sounds like their customers were the ones coming from out of state.
They were busted fby the FEDS for crossing state lines.
Raw milk sales still require a permit in PA.
http://www.das.psu.edu/pdf/rawmilkpacode62008.pdf
Without the permit, the state will get you:
http://www.pennlive.com/midstate/index.ssf/2008/05/nolt_farm_protest.html