“Sorry officer, I don’t HAVE a cell phone!”
4th Amendment Protection against unreasonable search and seizure!!!
Turn it OFF put it away and he can’t ask for (or demand) it!
Get a warrant officer!
“Sorry officer, I don’t HAVE a cell phone!”
Then you’ll be charged with a myriad of charges depending on locality ranging from “obstruction of justice,” “lying to an officer,” and probably assault (Since swearing now constitutes assault, go figure, like the Olive Garden, with “Law Enforcement” officers, “the possibilities are endless” (TM)).
Making a false statement to a police officer generally is a crime, and also gives him probable cause to examine you more closely.
Better to just say "Where is your warrant, and what is your probable cause?"
The only circumstance where I could see the cop legitimately wanting to see your phone is if there is a law against talking while driving, he saw you with the phone to your ear, and he wants to check your call history to confirm that you were engaged in a phone call in the minutes before he pulled you over.