Spelling - Make Up Your Mind, People

I'm a bit of a pedant when it comes to spelling. Let it be known. And I prefer the British English dictionary. If you are writing "ax" then you only have two-thirds of the item. Australia uses the Pommie spelling. So it really bugs me to see a shop having an each-way bet. Are signwriters in this country half-wits or do they not question the customer?

CENTRE or CENTER - make up your mind, people.

I think these guys have used a little too much poetic licence. The Language Police should be paying them a visit. How do we expect the youth of today to formulate a consistent technique of spelling? Or am I reading too much into this?