Supermarket
Location. Senora Freeway, Mount Chiliad

This shop has two registers, and you can expect to walk away with $950. Shoot the second register when the clerk is finished bagging your money.

Grab the money that drops for the second register, then the bagged money, and hotfoot it out of there. Since this is a rural area, you can probably make it into the wilderness behind the store by car before the fuzz arrive.