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If I understand you correct....I know you can use Freedom to buy gift cards at the store (and online). I have to do this until Costco takes Visa. Now I also know that in order to get a money order you must pay with cash. At least that is how it is in TX.
Welcome to the myFICO forums. I do not think you will be able to use a CC at Safeway (gorcery store) to get a money order. If you do it will likely be considered a cash advance and you will receive no points and/or bonus.
This topic gets close to a topic that violates the TOS for this site so proceed with caution, it certainly seems your question is well intentioned.
There are a few sites that allow you to use a credit card to make payments via check to various people including landlord. The landlord wants cash in hand and taking a credit card would cost him/you more money. Try plastiq as a site and see if they might work for you.
Others will certainly chime in, but I am very doubtful that you find a place to give you a money order for a credit card.
While I'm not sure on the specifics of this purchase at Safeway, I have to agree with the others above. Not very familiar with this myself, I attempted to buy a MO and pay a bill at WalMart. While I could pay my bill with a CC, a MO could only be purchased with cash or a debit card. I would expect this to be standard for most places.