Instead of THE GUBBMINT being evil by LOCKING EVERYTHING DOWN in some scary QUARANTINE ZONE or the like, imagine a “got to build up zombie bite immunity” response, or one with pseudoscientific treatments, or pretty much anything so 
can feel like things are back to normal while zombies are just a thing that continues happening.
Add your own ideas if you like. 
Scene: An Applebees filled with terrified workers. The North side of the building is being besieged by a mob of angry chuds banging on the windows demanding mediocre cheeseburgers. The South side of the building is being beseiged by zombies banging on the windows. It’s hard to tell the difference between the two mobs
The picture that has haunted my dreams for years now.
hold “x” to rebuild barrier
zombie screening noises