Google's local algorithm is still vulnerable to hacking by fake locksmith companies, according to a story in Search Engine Land. You can find a full rundown here.
Basically fake locksmiths push out legitimate ones from local searches. When you call the fakers up, it redirects you to a call center. They give you a low quote on the phone and dispatch a subcontractor (aka con artist) to your location. Once they get there, they jack the price up two or three times because "this job is more complicated than we thought."
It's quite a little scheme, and it's been going on for five years. Is it just not possible to fix or something?