I'm pretty sure everyone knew he was a junkie. IMO it just felt like they were trying to make it seem like he was in the apocalytic world already and then "BOOM!" surprise he is really in the normal world. Like it was supposed to have some big effect but everyone who is a fan already knew he was still in the real world. Clearly they were trying to play off "The Walking Dead" pilot where Rick wakes up confused in a totally different world. I just found it kind of silly and predictable.
There in lies the problem. People watching this show already know what is happening for the most part. The writers need to find a way to make it interesting.
I guess another problem I had was some of the really silly writing and character development. So the Stepdad goes and checks out the church by himself and finds a gruesome scene. Yet he doesn't call the cops like a normal person would and his wife just shrugs it off like blood and guts is a normal thing to find in an abandoned church. It was just plain silly and made two of the main characters look like jokes. Then they both go back to the church together and she sees the scene for herself and yet again they don't do anything about it.
Seriously! The writers are trying to protray that the world is still kind of normal yet their main characters are already acting like the world has fallen apart. It just felt like a big swing and miss with these two characters.
With that said I did like the twist with the friend being the drug dealer. As mentioned before it just a shame they didn't work that story line more. I felt that the old man in the bed next to the injured son was very effective. I kept waiting for him to turn but he never did. It was a very effective scene IMO.
Like I said before there is a lot of potential here but if they aren't careful this show can go downhill fast.