They actually wash those?

I was sitting on a patio on Bloor St today and was a little confused. A truck pulled up at the side of the road and started power washing a dose box. He then used a towel to dry it off, got back in his truck, and drove away.
I don't think Dose is a great paper, but you have to give them credit for the promo they are doing. Everywhere I turn I see an advertisement for them. I can't walk to the office without having 7 people try to shove a copy of it on me. And apparently, they have very clean distribution boxes. How many other daily papers actually get guys to drive around in trucks with a power washer?