Mom probs.

I'm starting a new job after having my son 6 months ago. My mom agreed to watch him while I'm at work but she's been extremely rude and bossy about it. Saying I need to go down and get daycare assistance so she can get paid by the government. Then saying that she won't wash bottles or do his laundry while I'm at work. So pretty much she's going to leave the mess she makes for when I get home. Am I in the wrong or is she?