I just tried to find this information in the 2019.16 edition of the manual, and it's NOT findable by searching for "odometer". The entire text of the relevant section (on page 5) is below:
Trips. You can display distance driven, energy usage and energy efficiency starting at any time, or since Model 3 was last charged. You can also display this information for up to two trips. Touch ... in the top right corner of a trip to rename or reset a trip.
I suppose that if you guessed that "trip" was a good term to search for, you might have found this section, but even there is nothing I can see that tells you how to close this. The entire cards interface is really poorly documented.
So no, RTUHM (read the un-helpful manual) wouldn't have helped you here.