before proposing to her, an uber driver has a chance to pick up his girlfriend’s father who is a judge and a young terrorist wants to kill him.

The meat is in the chase and it will help to trim the 'before proposing to her' part (maybe say the father of his love interest..). On another note, how will killing the judge help the young terrorist?

How is it funny unless the father hates our hero's guts? (just a suggestion)

hope this helps :)