Great mod, but unfortunatly the bank heist is a little bit bugged. when the heist is done, and you are in the vault area, you can't get back out because the door to the "staff only zone" is locked at that point. Also, the SWAT team is pretty poor in accuracy. 6 of them just smashed each other to shoot the robbers at the front door lol.
http://www.gta4-mods.com/script/drunk-peds-f13725
drunk peds, nice mod to add :) (almost a must have!) Random peds will walk around drunk, and sometimes piss on the ground or (i heard) cars :)
Using it, and its nice when you are patroling the neighborhood