There are two credits scenes, and the first, which I've already mentioned, is technically a mid-credits scene. It appears before the big stretch of regular credits, which go on for a while.
These credits probably ran while you were looking for this story, or checking your email. Or googling M.O.D.O.K., because wow.
The second scene is after all those credits, and it's not what you'll expect. But it will have you excited about another upcoming Marvel series.
Then, once a message — you'll know it when you see it — appears on the screen, you're good to leave.