When Jimmy sees Lalo for the first time, he is whistling/singing the same song that was playing when we were first introduced to Lalo in season 4 episode 8.
The dirt track where Lalo tries his car is Harvey Caplin Memorial Speedway (Albuquerque, New Mexico, USA).
The beer that Jimmy and Kim drink on their balcony is "Bock" brand, a nod to Rainer Bock who played Werner Zeigler.
The Ford Crown Victoria with New Mexico government plates shown right before Hank & Gomez first appear clearly has a "Police Interceptor" badge on the left side; however, the PO is blacked out to make it look like an "ICE" interceptor. As in "immigration and customs enforcement."