We have had this in Illinois for a few years now.  One of our brilliant
state legislators was quoted as saying that it doesn't cost anything to
leave your lights on.
Even ignoring the law of conservation of energy, it still turns out to
be a bonanza for road service people who come to jump start cars and
those who sell batteries.
  When I asked a friend of mine if we had to have our lights on if the
wipers were only set on intermittent, he said that maybe we could then
just use our emergency flashers.  :-)

Larry A.

mark drillock wrote:

> If the main advantage was to allow forgetfulness with a reduced penalty,
> a simple alarm to warn when the lights are left on would have been the
> way to go. No factory wiring need be disturbed for such a device to
> work.With the new headlight on law in California, I have been
> considering just such a mod.
>
> In Cali we must now also use our headlights whenever weather conditions
> require our wipers to be on. Lots more chances to leave the lights on in
> the daytime after parking.
>
> Mark
>