Yep ~ Totally normal cat behavior. They love you so much and when you're not there to wait on them hand and foot, they feel the need to let you know! Don't worry, when they're through punishing you, they'll be back to their normal behavior.

I once had a kitty that would purr purr purr then remember she was mad at me and take a swipe then purr purr purr then take another swipe. Don't worry, all will be fine.