Flutterby™! : Houston residents lower speed limits

Houston Chronicle: Speed limits lowered in residential areas:

Residents with children playing in or near the street had asked law enforcement agencies to serve them by positing 20 mph speed limit signs in neighborhoods to protect their children. Many felt that, with or without children, the 30 mph speed limit set by the state was just too high for neighborhoods. Many of the 20 mph signs, which could not legally be enforced, were set in place.

Lower speed limits got enforced anyway, causing the DA to complain to police. Luckily, there appears to be legislative relief, lowering residential speed limits.