I used to travel with our sales people when they had to do demoes. Even with internet, they'd bring a small desktop computer, a monitor, a WiFi router, a bag of Ethernet cables, all assorted keyboard and mouse paraphernalia all in its very own carry on bag.
Needless to say, we always planned for extra time at security...
I'm sure no one will ask them to show UL or CE marks or want Homologation approvals. You just whip out the old ISO 9000 certificates and tell the customs official that its all good "look its OpenWRT from Github - definitely not a Stingray officer!" LoL.
It's close though. With some touching up of the messy Dremel work I think it would pass a cursory inspection.