Don't forget the Mustang chassis isn't designed for 'flying' so it's quite possible the subframes/chassis has either stressed welds or was tweaked a bit. An alignment shop would be able to tell you if you're still straight or a little crooked. If it's the latter, insurance will be the cheap route.

For the future, get taller feet that can't get stuck under the brake...or just pick your feet up a little more.