Yes, both Dee and I had problems with that case (CoDA - Case of Disappearing Auto). I tried it a couple of different times in AP and it got stuck in the stakeout loop. It allowed to progress in the career level and writing reports, but would not allow the stakeout to complete. I had to cancel the case both times.
Tried it twice in Sunset Valley - 1st time Errortrap reset Yasmine and had to cancel out because of it. 2nd time was with a test Sim and solved the case without any problems.
The other case I had to cancel after fully troubleshooting is Great Clap Trap of an Art Heist
Tried my art heist save two more times in a new Sims 3 folder no mods/cc or store stuff. It was a save earlier in the case and it still didn't allow me to confirm presence.
What I tried in confirming presence....
1. Just after Aggie getting to work
2. About 1:40pm (just before she leaves work).
3. Meeting her there and touring with her, canceling that to try to confirm.
4. Trying to catching her before work.
5. Waiting for her to leave work.
It just won't complete.
I did get back into my main save and canceled it. It came up a couple/few more times and canceled it again.
I am very happy to hear you were able to solve the CoDA case!! I don't think I've gotten it in my current save, or if I have I may have canceled it.