It would appear to be unconstitutional for the government to support a religion in this fashion. Where, oh where, is the ACLU? Where are the anti-discrimination zealots?
Oh, and in a previous thread about this silliness, it was pointed out that the cab drivers are already carrying alcohol - in their gas tanks - because ethanol is grain alcohol... So, maybe they will have to go out of their way to find a gas station that is alcohol-free...