In cases where people completely ignor the rules. They will be asked to leave the resort. :)
Oddly, yesterday several of our group were smoking in non designated areas (I don't condone it, but it's not my rule, so should be up to the staff to enforce) and members of staff walked past regularly without saying a word.
Heading to Splash Landings then afterwards, and people were smoking in the doorway of the hotel (not the smoking area, but actually right in the door way).
Again, staff passed them and didn't say anything.
Nobody was asked to leave - un-policed, it is utterly ineffective and it is