The 4th Amendment is almost meaningless now.  Too many of our judges over the past 4 decades have opined that winning the "war on drugs" is more important than our civil rights.   Now, based on a SCOTUS ruling this summer, Utah v. Strieff, we have lost protection against random police stops (even illegal ones).  Justice Sotomayor's dissent on page 14 of the decision (joined by Ginsburg) is enlightening.   I don't own a cell phone - because of privacy concerns, but that's a trade off in convince that most of the people I know are not willing to make;  nothing is free ;) 

https://www.supremecourt.gov/opinions/15pdf/14-1373_83i7.pdf