Yes, Emma had her Virage on standby but she didn't reply to Izzy. She finished her beer and pulled a handgun seemingly illsuited to a woman of her size from her hip holster. She checked the magazine, clicked off the safety and returned it to its place at her hip. The whole thing was quite discreet and she highly doubted anyone would have seen her do it.
She wasn't expecting to have to fight, but considering the suit of armour, talk of the apocalypse, and the guy who just walked in with an assault rifle anything was possible and it was better to be safe than sorry.