What about your Popcorn Chairman arranging a "show and sell" with the other members of the Pack for future years? The Cubmaster should be running the meetings not organizing the fundraisers for the entire Pack. For the past 4 years, I have accompanied my son when he goes door to door selling popcorn . As his cubmaster, I do not necesarily wear my field uniform, but I do wear my activity uniform.
I would rather see him arranging a sale in front of a store, that the scout could sell at, than him taking the order sheet to work and selling there for his son
If he has been very rude to other parents, that should be addressed by you as CC or your UC