Unless you agitate the believers.
So, fine, they have their own ads now.
God cares for everyone ... even for those who say He doesn't exist!
I'm not sure what religion they're speaking for when they say this. The ads were apparently purchased using the money of a number of people from a number of different faiths ("Christians, Jews, Hindus, Sikhs and Muslims", the purchaser claims). But I don't believe the statement is accurate.
A cursory reading of the christian bible, for example, states pretty clearly that god doesn't much care for atheists:
Psalm 14:1 Only fools say in their hearts, “There is no God.”
They are corrupt, and their actions are evil; not one of them does good!
Romans 1:32 They know God’s justice requires that those who do these things deserve to die, yet they do them anyway. Worse yet, they encourage others to do them, too.
Romans 1:28 Since they thought it foolish to acknowledge God, he abandoned them to their foolish thinking and let them do things that should never be done.
If this god of theirs "abandoned" us, I have a hard time believing the claim that said entity also "cares for us".
But that's just me, and they'll automatically declare that I'm "interpreting" their bible incorrectly then I point out that it says exactly the opposite of what they want it to say.
What's more to the point is that there will now be a brief agitation of the believers. We can hope that this will leave the fence sitters with more information on the issue so that, the next time a pollster asks, they can say, "No, I don't believe there's a god" and we can start doing away with this notion and god-belief is somehow necessary for moral behaviour.