Question: Do you not have noise complain laws in the US? I mean if some company is producing that noise, waking people up, I would start calling the cops on them every time it happens. And regarding the security guards, maybe a daily pick-nick on the public property outside the buildinge would be a nice way to point the middle finger at them :) Just my two cents...
We have noise complaint laws, sure. They're different depending on the jurisdiction, of course, but they exist.
And as for the security guards, it doesn't sound like they're protecting public property. Depending on the laws in that area publicly accessible does not imply that people are allowed there, just that they can easily get there.
