if left alone, they wouldn't bother you so much.
You sometimes wouldnt even get a whiff of the smoke if you didnt
notice.
Maybe you should realise that monitoring of smokers is not a
one-man job, and reminders by the staff may not result in immediate
effects. Getting the environmental people down isn't a permanent
solution, just a short-term scare for the smokers there.
If you are looking for a cure to smoking woes, unless the smokers
take precaution not to leak any smoke into the alley (which is
unlikely because opening of the door will result in smoke drifting
in)
otherwise, dont bowl there at all.
Its a compromise actually. Its never possible to win this battle.
Thats why I disappear far away when i smoke. If others aren't
following, you also cant do much. Every solution is a short-term
cure. Otherwise, install those air-freshener auto spray for the
alley lor.