McDonald's Ghandi square is unhygienic

I work in Marshalltown opposite Sara, around 02am just after I finished a hectic shift, I went to grab some meal at Mc Donald's Ghandi square, my plan was to sit and eat there but I was extremely shocked and disappointed at the state of their outlets, all the tables were dirty from the previous patrons that were eating, I went to ask if the is a person responsible to clean after the guests and I was told I had to do it myself and the management is aware of this......worse place to go for a bite at night and I don't even understand why they make it 24hrs then....