It's now smooth sailing if you own or plan to purchase the Crackdown 2 "Toy Box" DLC pack. After we previously reported the premium content was causing game crashes, an update has been issued. All you need to do is delete the existing content and redownload it and you'll be good to go.
Apparently the issue had to do with the way the DLC "was mastered and packaged" and that's why a re-issue was all that was needed instead of a patch. You may commence your jet packs again.