If theists need the facade of religion to conceal the fact that 'god' and religion are creations of man, so be it.God does not exist but the Law of the Land will hold you accountable for committing crimes.
So no, all things are not permitted even though god does not exist.
You can't prove Go does not exist.
Law of the Land is different all over the world and in different states. It's not absolute.
All things are permitted still - if I want to commit a crime and am willing to pay the price, I am permitted to do it at my own choice.
The onus is on you to prove your god exists since you made the claim.
The Law of the Land elsewhere is irrelevant.
Thank you for admitting that it is only your delusional belief in an imaginary being that is stopping you from committing crimes.
Atheists, like myself, have principles that keep us honest.