LA Times: Los Angeles Mayor Antonio Villaraigosa signed an ordinance Thursday that doubles fines for residents who repeatedly violate the city’s “drought buster” rules, including a reworked ban on watering lawns between 9 a.m. and 4 p.m. The measure bars restaurants from serving water to customers unless it is specifically requested. And the ordinance will quadruple fines for large customers of the Department of Water and Power, mainly businesses, that break the city’s …