CNS TV Police Enforce New Driving Laws PIKESVILLE — Sgt. Marc Black from the Maryland State Police patrols the road for drivers on their cell phones. As of October 1st, it is a primary offense to hold your phone as you drive. Share this:Click to share on Facebook (Opens in new window)Click to share on Twitter (Opens in new window)Click to share on LinkedIn (Opens in new window)Click to share on Reddit (Opens in new window)