How did Kuroko's vanishing drive affect Momoi?
The way the vanishing drive works is that he diverts their attention for a split second, and is then past them by the time they realise what he's done. Against skilled players in a proper game, he needs something with a huge presence, such as Kagami or Aomine to make them forget about him, and that's the real trick, distracting someone when they're completely focused on you. 

However Momoi is not a competitive basketball player and they were not playing in an actual game, so my best guess is that he was able to use something with far less presence than he would normally need, like a street lamp or a car or whatever was nearby.