When i was @ fear farm in early September, they only checked tickets if you stood in line for a haunted house. I bet you could get away with seeing the free roaming actors in the courtyard or by the bleachers.
More than likely it would be the full charge, however they may be willing to help you out if you ask
Ya if you want to go in you need to pay for a ticket no matter what
I believe there would be the same price as you have access to the houses. Contact the venue itself.
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