When you are a drifter without a place to work on your Mini - What better place is there than a Walmart parking lot?...
Tools, rest room, food and wide spectical of people... (the later can be kind of annoying when your flat on your back underneath your Mini with your nose pressed up against the exhaust - and people (or feet is all I could see), want to talk about how cool your Mini is. Arguably not the best time to try and socialize with someone trying to fix their car).