is it better to be safe than sorry

The Malibu just had its first fill-up since getting the spark plugs changed, and it looks like that may have done a bit of good. It certainly wasn't any conscious effort to be more economical, because I got pulled over yesterday for speeding after I finally got off work - hosed again, the other quality person bailed around 4:30 without even asking if I could be the one who had to stay late.