While talking about skydiving to Carrie at the gas station, Grant says he is not so good with things in the sky. This is a reference to his surviving a plane crash in Bishop (2016).
While discussing diamond jewelry as an anniversary gift, Mac says, "And how is that supposed to get me out of the dog pound?" While the character is corrected (dog house), the actor (Erik McCormack) used to do a voice for the cartoon series "Pound Puppies."