I tried using A Better Route Planner. I was unable to plan the entire route (this trip encompasses two different regions of the world according to ABRP.) By breaking the trip up into two parts I was able to plan a trip route from Pensacola, FL to Brownsville, TX. Then a second trip route from Matamoros. Mexico to San Miguel De Allende, Gto, Mexico.
There are two legs of the Matamoros to San Miguel trip that require stopping at a Tesla Destination Charger (Tesla HPWC *):
Hotel One Reynosa, Valle Alto for 2 hr, 20 min
Bosques De Monterreal for 2 hr, 35 min
* You can specify the types of chargers that can be used by ABRP in the setting.