Personally, I think suppressor should be the least of illegal things about firearms.
The majority of the people I know with one have it so they don't bother their neighbors as much and they have a little extra buffer zone for their earpro.
I'd much rather it sound like my neighbor is using a large sledgehammer all day than gunshots.
The masks, lack of clear identification (not "I'm a cop" but actual identifying information), and what looks like 270 rounds of ammo waiting to go for a supposed ~~kidnapping~~ deportation are of FAR greater concern.
As an American, seconded.
I'm trapped here, don't YOU risk being kidnapped and trapped here or sent somewhere worse just because you wanted to see the Grand Canyon.