Originally Posted by WineCountryUA

I would phrase the thread summary a bit different.
There is no "entitled" compensation, correct
This was a bit below the standard where UA proactively provides compensation as an internal policy.
As this is a delay caused by an incoming aircraft have an MX delay -- its a bit fuzzier but as a paid F arriving too late for planned transportation, it might be reward by a UA exception. Keep the message short and without extraneous info.

The plane was late due to incoming aircraft delay due to MX. Paid F passenger arrived so late, alternative transportation had to be arranged --- No more details than that other than flight #, date. PNR, passenger name, and MP account id. And then an expression of disappointment, you had expected better. You could provide the Uber bill. Don't ask for anything specific. Done