Um, but sorry, we are not really doing away with Arabic numbers you see?
Because, er, English numbers are also Arabic.
Yes! See, as long as English numbers are being used, you are also using Arabic numbers! There we go.
PS. What about it originally being "Hindu" numbers? Sshhh!
For an "explanation" read this.
Most profound comment:
Abdullah Binayaf, a Dubai resident, wrote in with a similar correction. He said: "Readers should understand why several emirates in the UAE are dropping Indian numerals from number plates. By doing so, they are actually preserving the original Arabic numerals."
Previous examples of Middle East intelligence here.