Idiots like this are the problem.
I love guns. I'm immersed in the gun culture, I'm a 2A absolutist, and I think you should be able to buy integrally suppressed full auto short barreled rifles with Beta C drums and under barrel 40mm grenade launchers out of vending machines.
But if I see some guy who looks like a homeless version of Neo coming in with an AR pistol at the low ready like that, I'd be inclined to take a defensive position and call the cops.
If I'm that freaked out, can you imagine what the liberal morons in the WA .gov are thinking? Sadly, in WA the legislature has actually been more pro-gun than the people. The politicians struck down bans on suppressors and SBR's. The people voted in a rotten afterbirth of a law that created a registery and made it illegal to hand someone your gun to look at.