This is a hard one.
Wow, this is your hardest and longest I have tried out. Well done. 8/10.
TIP: Keep going till you get to information about the car, dont give up on the car just keep going on with it, eventually an option will say "The police would never give this information out publically, only the murderer would know this information" and then she will admit to stealing the car. You will then proceed to level 2, which is quite easy. Remember don't mention anything about the moose, that just bores her and she will want to leave. Good luck, Your gonna need it.