Other mistake: Both Rockford's appointments are at 8 o'clock. He shows up for the one with the mysterious person; gets beaten up, dragged to a warehouse (presumably remote, from what it is shown), beaten up some more to the point of spitting out a tooth, he is then at LAPD, where everyone hates him and definitely does not prioritize his case, he makes Becker search for the warehouse's registration, which needs for him to call in favours, and he turns then up for Tawnia's appointment at 9. With all the stuff that happened, and with the typical LA traffic, it'd already be something to be a mere one hour late without all the rest in the middle of it. Even his wound is kinda healed in that short time.
The Rockford Files (1974)
1 other mistake in The Kirkoff Case - chronological order
Starring: James Garner, Noah Beery Jr., Joe Santos
Backlash of the Hunter - S1-E1
Continuity mistake: Rockford's car has license plate number "835-OKG" at the front of his car, but license plate number "853-OKG" at the back of his car, a few times during the episode. (00:35:40 - 00:37:50)
Jim Rockford: Hey, I'm sorry Dad, you just caught me at a bad time. Reading that detective fiction doesn't help. I mean things aren't like that you know? They're not black and white. There aren't any heroes left, they die young [pointing to a book cover]. His gun is deadly? Mine's in a cookie jar.
Trivia: Noah Beery Jr. Plays "Rocky" Rockford, father of Jim Rockford (James Garner). In real life, Beery Jr. was only 15 years older than Garner.