[philman_36]

My back yard...literally.
The nearest convenience store is about 5-6 miles down the highway. (365 and Spur 93 (SE on map))
The nearest liquor store (middle eastern owned) is about 2-3 miles further down the road.
They can stay off of the road for most of the trip simply by cutting across the fields and then using the road on top of the levee.

About 15 miles total if they did that.
NOBODY offers rides on that road due to previous escapes.

[philman_36]

I stand corrected.
map

I forgot about the new store in Viterbo (liquor shop 2)
More likely to be seen there too as you have to pass through a residential area.
Either way, there are a limited number of places they can get whiskey.