Oh man, I about fell out of my chair laughing when I read this,
"... Here is what U.S. Bank is doing... They wait until the billing cycle ends before they take out the interest on your account".
Um, yeah, that's how CC interest calculates. It's based on the average amount on the card during the billing cycle. Hence the term "average daily balance". How else do you think this should calculate? And yes, interest added to your ongoing balance can potentially put you over your limit. That's why you shouldn't charge enough to come even close to your limit.
Seriously, my man, you really need to get rid of your credit card if you can't even understand that.