alcohol evaporates very quickly, but if you are worried, rinse it out with water and dry the bowl and smoke that shit.
Did you use 91% or 70%? As long as it's dry, it's fine. If you're worried about fumes - and you shouldn't be, but maybe you are - just blow through the pipe, they'll be gone.
Ya what he said... ever smell hand sanitizer, Thats the worst that can happen. if you die ill be fucking surprised.