My suggestion is to shoot alot! Draw em in and hose em. You can use their radios, clothing and vehicles to masquerade as zombies giving you even greater opportunites.
I wouldn't risk staying at home waiting for their impending search of your premises and possibly taking you into custody should they find something. If firearms confiscation is occuring it is GAME ON,....gather the like minded and hose em. After all, this would be considered war or is this all fantasy talk?
I'm not running nowhere. I'm loading up, throwing a pork butt on the smoker and having some "friends" over.
The survival storage stuff is great for natural disasters/biological/ chemical scenarios but hostile activity from a unified source and not roamers pillaging is a whole different ballgame requiring a totally different mindset. It's not "what am I going to do" it is let's kick some a$$ time