Two points:
The article states the condo HOA AMMENDED their regulations, in include smoking WITHIN the units. These owners never signed up for that.
Secondly, ALL condominiums, townhouses and almost all new suburban homes now have home owner associations. Many times too, these organizations (as in this case) act as little dictators....
I would continue to fight this--how any organization can tell you you cannot do a legal act inside the walls of your own home is beyond me.
I would smoke in the house anyway...and make them get a warrent to search the place (unlikely) to prove it.
Immaterial. They signed up for an HOA that had the power to amend the rules.
If you don't like your neighbors voting on how you can use your house, don't buy into an HOA.