Don't know Woltz after Barzini said there will be peace with Vito giving protection, there was no more drugs talk like the traffic in drugs was settled

Here's the thing when Vito was shot they were at peak strength but couldn't afford a stalemate, couldn't sustain their overheads if no business was coming in, couldn't locate Sollozzo and Sonny was killed They were the most affected

I can't see Vito's political/police contacts getting involved in the other Families' drug rackets mainly because of the big kickbacks these corrupt contacts could be getting from it You see -- all these people are business men, their loyalty is based on money

Also at the time of the peace meeting with all the other families against the weakened Corleones and no secret regime, Vito in his position can't afford a Gangland war

No doubt their perceived weakness lulled the other Families to entrap them but only way down the track and because Michael was alive