When Lucas is holding Maggie hostage to escape, Henry sneaks up behind him and picks up a skillet. The skillet has the paper insert but when the scene switches to Lucas turning to face Henry, the insert is missing from the skillet.
SFPD would not have jurisdiction over a murder outside the city, as evidenced by the scenic drive and spacious grounds. If the name of the resort is to indicate that it is indeed in or around Larkspur, CA, it would be in an entirely different county.
In the movie the masseuse is referred to as 'Ruby' but in the credits she's listed as 'Lucy'.
Note that the assistant "Lucy" in the credits as played by Shannon Chant-Kent, and the masseuse "Ruby" is shown in the credits as played by Mayumi Yoshida. The assistant is a regular cast member, although not in every Gourmet Detective, whereas the masseuse was exclusively in The Gourmet Detective: A Healthy Place to Die."
Price continues the error from _The Gourmet Detective (2015) (TV)_ when she refers to herself as "Detective" several times. Plainclothes officers with the San Francisco Police Department are called Inspectors.