Maybe they should do this as being a driver fo nearly 20 years, but a cycling commuter for only 2 months, I've certainly changed my driving habits around cyclists recently.
Funnily enough, I have recently noticed that my driving has changed a bit.
I never considered myself a "bad" driver before (not good either mind, just average), and thought I was courteous in the main.
That possibly was true, but I find myself thinking more now, being CERTAIN I am giving people enought space, rather than just thinking I have and so on.
Can only be a good thing I think.