Spolier Alert! Waingro: the scene in the cafe where they decide to knock him off and then lose him in the carpark; the name Van Zant hasn't been mentioned to him at that point and he doen't see the name/know the name on the bonds so has no idea who they belonged to or what they are going to do what they do next re the bonds.
Also at that point Neil hasn't told the others about the bank either, so no way Waingro knew about Van Zant or the bank to send anyone after Trejo and torture him to get that info, and then inform on them.
Also Trejo phones Neil and says he has cops all over him and can't dump them, but there had already been a scene in the squad room where Wes Studi ( so good as Magua in LOTM ) says the 'gang' have dumped all their survellaince, so either clearly not going by what Trejo says , or he's mistaken Van Zant etc for the police but would he make that kind of mistake? Not a chance.
Either way Waingro had no knowledge of those two incidences based on the way the film is shown/edited.