Instructions
Press the top button on the directional pad, also known as the "Up" button, on the PS3 controller. This brings up your character's cell phone. In earlier GTA games, you would have had to enter mods by pressing an assortment of buttons during regular game play and this would resort in you firing weapons off and causing more trouble. In GTA IV, you activate all mods through the phone.
Press the "Up" button again. This allows you to start inserting numbers into the phone. For normal game play you would use the analog stick to move, but for dialing the phone you use the directional pad.
Enter the following phone number into the phone by selecting each number and pressing the "X" button "267-555-0100". The phone dials the number and rings a couple times, then your wanted level disappears.