Spray-on mud and speed cameras?

Hi,

Does anyone use spray-on mud, or know anyone else who does?

I am a journalist researching a story on products like the one at
http://www.sprayonmud.com.

Have you used such products, or know any stories about people who have?

What are the ways in which it can be used and why? Such products are
marketed to 4x4 owners looking to give their vehicle an authentic
just-been-up-the-side-of-a-mountain look, but I have read from some
people who say they could be used to cover cars' registration plates to
avoid detection by speed cameras (something the manufacturer of the
above product says it does not condone and an activity it
discourages)... Got any stories about either of these uses? Ever used
spray-on mud yourself to avoid getting nicked or flashed?

What do you think of spray-on-mud - handy way for busy drivers to get
4x4 street cred, pointless yuppie posturing, perfect way to evade the
long arm of the law?

I'd love to hear from anyone who has used this type of thing or who has
any anecdotes.

If you'd rather not be identified, email .

Thanks.