HANG 'EM UP The signs are up and Rockdale police are now enforcing the state's new law prohibiting cell phone use in school zones. Here's the way it works. Drivers who talk on "non hands-free" cell phones during specified school rush hours are subject to tickets and fines up to $200 for each incident. Police Chief Thomas Harris said it's okay to pull over and park to use cell phones but be aware of parking restrictions around campuses. The law does not apply to persons using hands-free cell phones with ear buds or headphones. Cell phone use is still okay in the areas during hours not listed on the signs, he said. This wiew looks down Bowser at Rockdale Elementary School.