Unfortunately, you can probably be held liable for the bill, unless your intoxication was fully involuntary (e.g. someone drugged you without your knowledge or consent). The law does not recognized voluntary intoxication--e.g. getting drunk--as grounds to escape legal or contractual obligations; the fact that you chose to get drunk is seem as providing justification for holding you liable for your acts while drunk (you chose to get drunk, so you accepted the consequences thereof).