Look at the obvious what is right in front of you.
He told you he was at work and his boss called looking for him.
And that means he isn’t ready. When will he be, well active addiction looks like active addiction. If he is blaming others and not taking responsibility for his actions, if he is comparing out ( I am not as bad as) if he is stealing, lying, unreliable, making excuses then he is in active addiction.
Recovery looks much different.
Please stop making excuses for him, and know that you never should have from the beginning.
Also don’t buy him groceries, please keep groceries for you and your children. He is a grown man (and can take of himself) who can surely buy his own. And don’t buy into the I have no money ******** because frankly if he did it would go to crack anyway because he isn’t showing that he is in recovery. He has to find what is more important, crack or food … sadly in active addiction the crack is gonna win.
Also be grateful he isn’t there right now. You do not need that or the worry of wondering what will be sold next, what will he do next. Crack addicts can be volatile and unpredictable using as well as coming down. You do not have to subject you or your children to him in that state and you shouldn’t.
Stay safe.