I'm mad that apartment management only said, "sorry" for sending maintenance to my unit without my permission.
That does sound annoying. What do you think they should have done instead?
I don't know, but I wanted more than just that.
You should tell the management company how you feel about the incident. If you expect more than an apology for your inconvenience, you should let them know. If you don't tell them, they will continue to ignore the problem.
Yeah, I don't want them to think they can just waltz into my apartment unannounced.
That's true, because it's your right to be informed before maintenance is done in your unit. I really think you should let them know that what they've done is unacceptable, so it doesn't keep happening.