Whoever wants to file the lawsuit. This is a quite obvious case of violation of church and state.
What specific religion is the state promoting?
Judaism and Islam in this case. They have one God, the Christians have three.
So it isn't supporting or elevation one religion over the other. Not seeing the issue.
It is promoting any religion that believes in God over any that doesn't or those with no faith at all. The police are supposed to be religiously neutral, like all other forms of our secular government.
Tell us, if they were handing out Bibles with traffic tickets, would you consider that over the line?