mom said the tv said there were going to be fireworks tonight. There were more fireworks last night. Tonight, people were calmly talking about "if I get arrested..." These are not radicals but with the police presence there, they could just decide to arrest everybody and sort out who did what later. They have large paddy wagons on site. If something happens in the wee hours of the morning, I'm not there. I'll be back there tomorrow after I try to get some sleep.
So what you and your mom are saying is that the Greer police department is going to do a sweep in the wee hours.