When I start a new game (and sometimes I am drunk/buzzed) I forget to save and leave Daisy at the mansion. Again, Daisy's final quest triggers single turn mid-travel; and is stuck traveling after completing Raymond's Estate. 

Note: single turn = leaves mansion in the afternoon, Daisy's final quest triggers (while selected for traveling to destination), and arrive at destination in the evening.

I've encountered this bug/glitch before and forgot the work around: leave Daisy at home after receiving the letter to buy her; until she goes missing..