Sorry, did you just seriously claim that it's not fair for me to call their reasons false, because it says so in the Qur'an?
This isn't just about the bus though, it's about receiving government services. The bus example is just what the left is using to try to discredit the legislation.
And yes, receiving government services with your face covered can certainly harm others. Think of the medical fraud potential, and how that harms taxpayers.
My source was a BBC interview of some women living in a Muslim dominated neighbourhood in the UK. I can't find the video clip, but the Caucasian women was wearing a head covering and claimed it made her less likely to be harassed by her religious neighbourhood.
Here's a similar story http://www.express.co.uk/news/uk/673789/Blackburn-Islam-muslim-community-rise-of-the-burka-Koran-religion
We shouldn't be normalizing these face coverings and head coverings under the auspices of religious accommodation. They should be criticized and barred wherever possible.