Food trucks, cafeterias on wheels if you will, seem to be sprouting up everywhere; the Sauca truck shown parked above on F Street NW at 7th Street had no shortage of lunch customers. There’s the Fojol Brothers, District Taco and Sauca trucks just to name the ones we can remember. The public can follow their favorite meals on wheels using Twitter and the operator sure saves money by not having to supply a place for patrons to sit. There’s even a food truck tracker online! Does the lunch business decline for other restaurants when the trucks park nearby?