Shanghai - HK - Guangzhou

Hi! Thank you for all your amazing information. After a nightmare trying to get a Tourist L type i gave up and am going to get the 144hr shanghai free transit. I would also like to go to guangzhou, however i know i can not travel between the 2 on the 144hr. If i flew out of shanghai to hong kong and then to guangzhou on the same day, will there be a problem getting the transit visa in Guangzhou ? What are your thoughts? Thank you thank you!!