Yes there is evidence. From Pro-Med Mail:
A second PCR-positive dog, Hong Kong
https://promedmail.org/promed-post/?id=7112693
Apparently it was a very old dog though.
Published Date: 2020-03-19 15:56:45 Subject: PRO/AH/EDR> COVID-19 update (45): China (Hong Kong) animal, dog, 2nd case PCR positive Archive Number: 20200319.7112693