Already been done...if you have not seen him yet...try this:
http://www.youtube.com/watch?v=EudabJ0rSJs&search=amazing%20racist
The Amazing Racist....he goes to pick up a truck load of Mexicans who are waiting for work in a Home Depot parking lot and says he needs help building a deck at his house.
He drives to the INS office instead. Hilarious to watch how quickly they flee.
I have seen it. Sent to me by a disgusting friend of mine. :-)
I've seen it live and in color too. My dad had the contract on a big shopping center at Five Points (close to Corpus Christi) for the parking lot. The concrete guys were pouring the slabs when la migra showed up and a whole lot of that crew took off like you wouldn't believe.