Is this a sign? Or vandalism?

This question has been bugging me for a long time now - is this shop called "Ask Toes", or is it just vandalism?

It looks like graffiti, plain and simple. But I walked past the guys who were setting up the shop every day on my way to work, as they lovingly restored the shop, with good attention to detail. The "sign" sprang up at the same time as the shop opened, in which case, why didn't the houseproud owners clean it off and put up a proper sign? But if it's not graffiti, what on earth is the name supposed to be, especially, done in such an amateurish way.

Does anyone know? Please put my mind at rest.

I suppose I could just go and ask them myself, but I don't want to seem rude if it is deliberate - and anyway, who wants to go in a shop called Ask Toes?