A good worker!

Jorinda is so incredibly good in public! She loves to go, go, go! I can take her on all day shopping trips and she doesn't get tired. She is very good about not greeting every person and she is a pro at loose leash..for the most part!
We do have a problem though, after a short outing she refuses to get in the car! She backs up, sits down, and refuses to get in the car! She isn't done working, so she isn't ready to leave! Any advice on how to tackle this bump in the road?

 {{I can't upload pictures again!...Grr!}}

Maddie, Betsy, and Jorinda