This is what the rules say:
C.The use of illegal substances is forbidden
from the two minute warning until the
player’s scorecard is submitted. Such use
shall result in immediate disqualification.
D. Consumption of alcohol is expressly
forbidden from the two minute warning
until the player’s scorecard is submitted.
Such use shall result in immediate
disqualification at a B Tier or higher event.
(This rule is still in effect at “C Tier” events.
However, the Tournament Director may
elect to issue a warning to the offending
player instead of immediately disqualifying
them. If a player has been issued a warning,
all subsequent violations shall result in
immediate disqualification.)
In my opinion the rule is not as cut and dried as Chuck would interpret it.
Oh, yeah, I meant that bad wordplay!