Unannounced visit - ended with door left open

Writing this with both rage and anxiety still in me. I (26F), live in Washington DC in an apartment building with my best friend.

I have lived in the building for a year and my best friend is living with me only for the summer. She is out for the weekend and I work nights. I was walking home and get to my apartment door only to discover that not only was the first door stuck in the open position, the second door that leads to my apartment WAS OPEN!!!

I walk in assuming I was robbed only to find that the top of my toilet has been put on the floor and a general assumption that maintenance must have come by. WITHOUT EVER TELLING ME!

I’m anxious, uncomfortable and just very rattled. They‘re overall a good company and I’ve never had any problems but this is a serious problem! I took pictures, documented everything and plan on sending an email to my manager but I’m just really lost on what the hell to do!

Any advice?!