Seems like a lesson well learned. Your employee learned not to toss litter out the window, she now carries an ashtray in her vehicle, and she has stopped breaking the law. The campaign by Keep America Beautiful is a good one; it hits people where it matters most, in their pocketbooks. Ignorance of the law is no excuse. I'm glad to see your employee learned a valuable lesson from her experience.

I know several friends, besides myself, who make it a common practice to report litterers (cigarette or otherwise). We're out there, and if someone continues to litter, I (or others) will eventually see it and report it. It's just a matter of time before you get reported.