It was horrible but thank you for asking.
Overall a sorry state of affairs, but they were in the wrong. If they gave him an extra 5 dollar bill he would automatically assume it was tip.
They should have simply paid him 45 dollars or used a 50 dollar bill.
Them demanding he get fired was stupid, since if they work in accounting or simply anywhere with money I'd sooner consider firing them, purely for financial reasons, not public scandals.
Idiots or not though, witch hunts and inquisitions tend to end up awry and passion gets the better of people. The vigilante justice ended up hurting them eventually.
Even though to some extent justice for the delivery guy was exacted, people being people went on to commit an injustice upon the office people.
Them being stupid or idiotic or douchebags is not grounds for harassment or any form of badgering and going so far as to make them lose their jobs.
I hope that you realised that regardless of whether or not you do the right thing or think you did the right thing in some cases people get hurt and regardless of how they acted, many times they don't deserve that.
Although you guys may see yourselves as a champions of justice, the fact of the matter is that in your zeal to help someone out, your actions led to people getting hurt.
Subjecting someone to a form of terror, in which they cannot feel comfortable in their own skin is not the way to go.
A simple footage sent to the manager of the pizza place would've sufficed and if the manager was of right mind he would have banned the dealership from their services as a pizza place.
Sadly you went on a few steps further, far across the reasonable border and published a video on a viral media and subjected people to nothing short of terror. I am deeply disappointed.
You helping Jarrid with the tip jar is nice, but I can hardly think to compliment you after this.