I grow in my apartment and I have my locks changed on my front door. The only way someone can get into my apartment is if I let them in. If I'm not home, sorry, you're not entering my apartment. The reason why I did it is because the dumb ass maintenance people tried walking in while my fiancee was in the shower. They didn't even wait for someone to come to the door they just barged on in. If I get in trouble for it, that will be my excuse. I will tell them I can change the locks back, but if someone walks in unannounced, they will be shot.
Also, I grow in my bedroom and there is no reason for anyone to be in my bedroom except for me and my fiancee. When the bug people come they spray the baseboards in the kitchen and the bathroom. I also have a hole cut into the wall that leads to my return air for venting hot air. I also have cameras set up in my apartment, so if someone does manage to get into my apartment they will be on tape and I'll have a lawsuit.
I'm not telling anyone to change their locks, as that would be against the contract of an apartment unless you give them a key. All I am saying is that there are ways around them knowing anything that you are doing. Like growing in your bedroom. They have no reason to be in your bedroom unless you live on a top floor and they need to access the attic space within your closet.
I also have a 24 hour notice before someone is to come.