I noticed it's out in wheeling and buffalo grove (went into the vzw store to confirm it too), but not in northbrook and deerfield... looks like a spot outtage.
I told him it was just not me, there are others saying they dont have 4g as well. He said nobody called in to them and on their side the computer shows no problems with the 4g anywhere in IL. He did a ticket and hopefully it will be fixed within 48-72 hours he said. But if more people would call in, then they can make it urgent.