Oh wow, that's great to hear! I was very worried it was way too nerdy and complicated for casual play at a festival and among strangers. I bet you are a terrific DM.
I think the frustration factor depends on how granularly the group decides to enforce the formal process, and whether certain players decide to abuse it as mischievous roleplay - and that fuzziness is by design. I imagine strangers may be less inclined to troll each other. Thank you so much for running it and for the feedback!