Well you know, human memory is fallible and all that. Good thing we have this helpful footage to clear things up! I'm sure she'll be relieved when it's entered into the record at trial; as an officer of the law, getting to the facts of the matter is her highest priority, right?
It's so funny too because cops will come into court 6 months and 800 traffic stops after giving you a ticket and claim to perfectly recall everything that happened during the stop just as long as it all contradicts your defense. The worst part is that judges usually take their testimony as gospel and irrefutable facts while your own testimony isn't seen as truthful because "you're just trying to get out of a ticket."
one would remember, if it was an unusual extraordinary moment, but if one does this all the time, the human brain will only remember that this is a thing one does in general.
It may seem like a crafty dodge, but her inability to recall will end with a motion for summary judgement because there will be no dispute to the facts she has "forgotten."