When there is a penalty like that and they are that close to the end zone, they should push the first down marker further out. So it would still be 1st and 15 instead of 1st and 10 but the ball moves back a half yard.
The Bears loss was rough today and Cutler being shitty always makes me a sad panda. The Romo meltdown makes it all better though, a balm to soothe my soul.