How long does the Vector stage last? Given that jobs often have multiple legs, and legs last for about a day, the job would have to be somewhere pretty local and the infection have happened extremely recently to be valid. I remember the job in Vigilant, that episode starts with Vigilant falling and becoming Vectors, Drift skips a whole bunch of legs with The Path and by the time they got to Vigilant a number of the Vectors were entering the Torpor phase of infection.
Also, why can't they just shoot the Vector in the chest (since they die like regular humans) and get their biometric data in safety? Would the Blight in the blood interfere with the biometrics when the blood drop is scanned in?
I do like the idea of the murder zombie babbling key plot information as its mind dies, but what you might to do is, say..
The client was after a high-value target in the building attached to the car park and went in with his partner, the vector. Stuff goes wrong and they have to split up, so he hires the Taker crew to clear the parking lot and "confirm the death" of his "beloved partner" - while he in fact is breaking into the building and finishing the job while the Takers are drawing out the dead.
The complication is that the partner didn't die and has been fending off the horde, holed up somewhere. He's wounded - lost one of his eyes - but might not be infected. Of course, the client is going to insist that "I saw him get bit" which might raise the question of is he a Latent, is he immune etc. And if they say they work for the guy who betrayed him, of course he's not going to be happy to see the players and will probably get infected trying to escape. At which point the apologies set in as he babbles "it's mine, it's mine", the code etc.