How can I get the crowbar from the car thief?

Hint 1 of 7:

He will only let you have the crowbar once he has a reason to.

Hint 2 of 7:

You need to give him something that will make the crowbar useless.

Hint 3 of 7:

Think about why the thief wants the crowbar.

Hint 4 of 7:

He needs to get into the car.  So find another way in.

Hint 5 of 7:

There's a set of keys stuck somewhere in the hotel.

Hint 6 of 7:

Stuck in one of the doors, in fact.

Hint 7 of 7:

Look in the honeymoon suite on the second floor.  Shut the door first.