Since the government can't shut down bitcoins by stealing them (how they ended the last attempt at a sound currency- the FBI perpetrated a heist where they stole $8M in Platinum, Gold and Silver).... they will have to take more direct methods, like passing a law, or calling this "money laundering".
If they don't, then things like this will proliferate, and the only power the government has to back its currency is violence.
But employing violence here may be too much for people to accept. ...who am I kidding. Like I said the FBI stole $8M from an american vault and americans don't care, the ones who even know about it believe it was justified because the FBI gave a press release branding the people "terrorists" who "sought to undermine the US Dollar".
Oh, undermining the dollar, it sounds so scary when you put it that way.
Everyone should read The Creature from Jekyll Island by Griffen. It's a monetary history of the USA. The federal reserve was not created by accident, the boom-bust cycle they've perpetrated (eg: 2008 crisis for example) is not by accident either.
I won't say they'll use violence against bitcoin-- they're still using propaganda and that hasn't failed yet... or bitcoin might unravel itself.
But if this store is a success, it can't be allowed to stand, or there will be others and the entire system will unravel, eventually.