I wouldn't think so. Because if Howie found the card he would've gotten rid of it, don't ya think? It's very careless of Howie to have not checked Daniels pockets. But maybe he was afraid there may be someone watching and just gave him the cocktail and didn't want to get caught doing anything suspicious. Like if a nurse walked in or something.
Remember, when the PI first came out, he said he talked to Daniel a couple of times but Daniel didn't come back.
NOW, the PI says he had extensive conversations with Daniel.
The PI pulled a Howard...."Directing" Howard in the end likely telling him.....Daniel didn't say much....blah, blah, blah.
Would finding the PI card have been the basis for the "Daniel was having trouble with a girl" tape with Anna and Howard quietly sitting side by side. Was it "the setup" for why there was no communication between Anna and Daniel" prior to the birth of the baby??
No one has said when the last time Anna and Daniel talked to each other prior to the birth of the baby.