Dave is correct. The event was the Arizona Barbeque Festival held in Scottsdale, AZ. The promoters are listed on the KCBS website so you can easily find their contact information there.
Ya'll should understand that I find PC to be a very fun and rewarding experience as we get enthusiastic and immediate feedback from people regarding how much they are enjoying themselves and the food they are eating. This is a very different experience than teams normally receive at contests as the feedback comes in terms of scores, comment cards and sometimes trophies. My first experience with true team PC (which is really more accurately described as team vending) was at Rio Rancho, NM where the teams can cook and serve anything they like. The split is

/20 and teams are required to collect only "BBQ Bucks". The creativity that some teams showed was very exciting and we felt kind of silly having only competition leftovers. But, with the

/20 split, there was profit for us that day and that was great because we were still very new at this whole barbeque competition thing. That, unfortunately, was one of the only events we have ever been to that had a good split and so we simply don't bother doing PC anymore because it doesn't have a positive return on the investment.
I have long held that the 50/50 split that so many events offer to teams is so unbalanced that it is, in most situations, a complete waste of a team's time to offer any food other than their event leftovers and those will be gone so quickly that there is no way it could support the crowds which would be bad for contests. Do I agree with the concept that PC is a requirement to have a successful contest? No, I don't. But I do agree that an event will have a much greater chance of success if PC is involved, as long as the split is at least 70/30 or better in favor of the teams/vendors. Events can be successful without PC but they won't be public spectacles, won't offer a lot of amenities like free electricity and will be focused very much on the team competition. Again, a tougher event to pull off year after year but still very realistic and very possible.
PC payout is merely a function of making sure that there is enough manpower to count the tickets/scrip/tokens so as to guarantee that the funds are paid out to the teams on the same day. Could that be a big job? You bet. So is organizing a contest and so is preparing a wide variety of barbeque related foods for service to the attending public. I think it is an absolute must that funds be paid out on the same day and I'll be one tough guy to convince of any good reason as to why it isn't possible. And I still hold with my original opinion that 30+ days to pay out is ridiculous.