How does he even know the route of the Regalo truck? Did he tail the truck?
I wonder which highway it was where the whole setup took place. From the water compass, the truck is heading south-ish. That billboard which Mike parked his car behind, as well as the hose-ropeline setup, is of something Oasis Motor Court (with a "Next Exit" graphic that looks more like a freeway map marker).
There was a green highway sign that shows how far to the next few cities, like what you see on a normal freeway. It read:
Socorro .......... 14
Las Cruces ....161
El Paso ........ 207
I-25(S) passes through all 3 cities. As do a set of highways that travels near and sorta parallel I-25. 14 miles north of Socorro would place the truck somewhere between San Acacia and Polvedera. There's NO WAY Mike could have set all that up on an interstate freeway, and the road does not look like a freeway either. The only highway-type roads going south-ish near the area is NM-408.
I guess the showdown between Mike's rhododendron hose and cartel's ice cream truck took place at a ficticious location?