Writing on the wall

It's not really writing, but there are marks on the freshly painted living room wall. I'm guessing it's from the dogs running by and brushing against the wall. How washable is this no-VOC paint I made Dean use? More importantly, how much trouble am I going to be in when we can't wash it?!

We haven't even been using the room! What's going to happen when we actually are in there on a regular basis?