Thanks for adding that.
This scam is right up there with Y2K.
I had an operating repair shop and lived through that play by play and day by day. The one thing they stopped shy of and we were worried about, was to make it illegal to put 134a in the older systems if we like. I think the only reason they did not, especially in Ca, was because this just slipped their minds or they would have. Now days they would indeed do this in a similar situation.