Fresh produce prices are more indicative of supply and transportation issues rather than any overall inflation trend. Those prices can quickly change down although transportation is expensive and likely will remain so. Thanksgiving week in the US limits the output of produce while demand is peeking so that no doubt contributed to the price increases. Many packers of produce that is in storage have a 3, even a 2 1/2 day week for Thanksgiving so there is 40-50% reduction in output on commodities like potatoes, carrots, onions, cabbage, apples, etc reducing supplies during TGiving week.
Aren't corn tortillas subsidized by the MX gov? I do agree that tortillas are a great inflation indicator whether they are subsidized or not, though.