My local brewery fills growlers and just adds a twist-off cap to the top. They do not place any kind of seal or sticker on the cap to prove it hasn't been opened.
So if I get pulled over for whatever reason and the cop sees the growler, in say, the backseat, is this considered a crime? Even if the growler hasn't been opened since it was filled and no beer was removed?
What makes this different than a six pack with twist off caps?
I live in Pennsylvania, so answers from a PA perspective will be most useful, but even just a general feel from law enforcement's view would be helpful.