Ava and Dickson don't release the line mooring their boat to the dock before leaving, but it magically disappears.
The guys refer to General Quantrill. His highest rank in the Confederacy was colonel.
Panther is said to be arriving in Dallas from Houston, but she is clearly seen driving on I-20. In Texas, I-20 runs east/west, while Dallas is a roughly four hour drive north of Houston. Anyone traveling to Dallas from Houston would take I-45, not I-20.