Strange sign in car

2005/06/15 at 16:09

Today, I saw a car in the parking lot at my office. In the window was one of those yellow diamond shaped plastic signs that used to all say ‘Baby on Board’. This one said:

No lavo mi carro porque amo a mi tierra

English: I don’t wash my car because I love my country/earth
I understand the words, but I don’t understand the message.
Anyone? Leave a comment.