Funny but interesting email about how to save on gas.

[jsarno]

Originally Posted by SmootSmack

Is it supposed to be a joke, or actually someone's serious idea?

I think it's intent was a little of both.
It points at the serious issue of illegal immigrants, but uses some humor at how to handle it. I doubt it's meant to be taken extremely literally.
For all of you that live in areas with a massive amount of illegal aliens like I do, you might find it funny and serious at the same time.