I would suggest staying as calm as possible and asking her to sit and dont put your hands on her until she does. If her front feet leave the ground during the greeting take your hands off her and calmly tell her to sit again. She can break the sit while you are petting, but repeat when the feet leave the ground.

Definitely go over the triangle step 5 stuff – since this will make everythig easier if she learns to wait for your call after the greetings.

You don’t even want o think of any corrections for this behavior at this point until you take some time to teach her and make it easier for her.

How is she with fetch? u can still play this with her in a wheel chair if she brings it back. There is also tug… she can pull you round this way.