Cities have tried innumerable measures to keep pedestrians' eyes off their phones when they cross the street, and there have even been some state-level attempts at legislation to force a change in behavior. Honolulu, however, has officially drawn that line in the sand -- it's the first major US city to pass a law that fines you for crossing the street while using your phone. As of October 25th, the Hawaiian burg can ask you to pay between $15 to $99 if you're caught looking at a mobile device while you're strutting the crosswalk. How much you pay depends on whether or not you're a repeat offender. There is an exemption if you're calling emergency services, though, so don't feel guilty about dialing 911 while you rush to the scene of a crash.