And when you pray, be not like the pretenders who like to stand in the synagogues and in the corners of the streets to pray, that they may be seen by the children of men, and truly I say to you, they have received their reward.

Matthew 6:5

It doesn't need to make sense, it's only a peacock-like display to show how much they don't know their own holy text.

Don't expect God to help you in pursuit of something greedy, wrathful, lustful etc.?

It is suppose to be saying that being sinful makes it impossible for you to go to heaven. That because of the stain of sin you aren't allowed in God's presence.

The dumb part is it shows the owner of the vehicle doesn't understand their own theology as it has absolutely nothing to do with sin and all about relequeshing ones self to a god. You can sin all you want and as long as you believe (and possibly do works) you get in. It's why the religion is morally bankrupt. A repentant serial killer goes to heaven while a kind and generous atheist goes to hell.