I do know the Mop hated T&P and jack hammered off the TP Diamond on the Marshal, Texas station and as many other landmarks as possible. There are still a few TP markings that may be left on bridges around Fort Worth, but not many.
There are still some bridges painted with T&P markings out west. At the west side of Sweetwater, near the airport, there is a fading highway underpass that still advertised the Sunshine Special as recently as last year.
When I was assigned to Sweetwater in 1993, I talked about the T&P with some of the old head Engineers and Conductors. They all remembered the T&P as a well-run railroad with smooth track. At that time, the former T&P was down to one long freight, plus one local, in each direction. (After taking over the UP, they had re-routed most traffic over the UP, rather than share the revenue with SP from El Paso to the coast.) The rail was 119 lb., rolled in 1948, jointed, and largely ignored by MP and UP since the merger, with a maximum authorized speed of 50 MPH. We started running our California to Fort Worth trains over the formerly-T&P UPRR from Tecific to FW rather than via Brownwood and Dublin, and it was pretty rough track. The Train Dispatchers were unfriendly to Santa Fe crews and did a lot of really chicken things such as dictating track warrants at machine gun speed and then criticizing the Santa Fe crews for asking for repeats. They used a different voice and a different speed of dictation for their own crews.
The Missouri Pacific, although I am fond of it, was unfriendly to all other railroads. It had to work hard for its traffic, and its management appeared to be especially jealous of the easy life that the prosperous T&P had after the discovery of oil in the Permian Basin. Life on the Mop was not peaceful. If its officials were not causing some contentious event with another railroad, then they had an internal dog fight while they awaited their next interline fight. Their locomotives had no frills, and were equipped with the cheapest of everything, bare bones, in contrast to the T&P, which had equipped all of its through freight diesels with dynamic braking, Mars Lights or Gyralites, and comfortable seats. However, the UPRR Trainmaster and the UPRR Road Foreman of Engines from Odessa and Big Spring, with whom I had to interact were very pleasant fellows and we worked well together. They treated Santa Fe crews fairly. However, the officials from Fort Worth did most of their operations testing on Santa Fe trains, rather than their own, and were critical of any small errors they could find.
One T&P peculiarity is that they moved the Engineer's windshield wiper further to the outside edge of the windshield on their F7A's. However, they did not relocate the wiper on their E7A's and E8A's.