During the truck stop sequences we see the truck driver hasn't cleared his windshield; the entire hood of the truck is piled high with snow. When he exits the truck and is killed we see the windshield is more or less clear and the mound of snow is gone.
The Sacromonte omelet is made with brains and testicles of veal or lamb, not liver and sweetbreads as described by Hannibal Lecter. There is an omelet from Granada made that way, but it is not the Sacromonte omelet.