I never had to do any waiting either. It took me longer just because I had to register. I got really lucky because I didn't have any proof of residence and the person who registered me didn't ask EVEN when the person right next to me got asked.
To me, this was the biggest surprise of the election:
Look at all dat blue! And I always figured that the northwoods were a Republican stronghold. Looks like the last bastion for conservatives are the suburbs around Milwaukee.