You are obviously not a criminal mastermind Mr the wolf so I will excuse your naive post.
If it isn't over engineered and elaborate, then I would just be the same as any other rapist. No sir, with the Stealth Rape Suite, I become an evil genius, easily recognisable and infamous the world over, spreading my filthy seed at random and without warning and in some cases so fast the victim won't know they have been raped by The Stealth Rapist.
I'll get my coat...oops can't find it.
Isnt that the exact opposite of what you want to be, surely inconspicuous and unknown is what you are aiming for?