I think this may be a Hanlon’s razor situation: “Never attribute to malice that which is adequately explained by stupidity.”

Who designed this parking lot? I bet tons of people make this mistake as there are stalls positioned exactly the same way as the “laneway”, with bad arrows easily confused for stall lines too.

I think the driver is just sincerely mistaken, and when designing something for public use that doesn’t factor in the lowest common denominator it’s the designer’s fault when things don’t work.