I've never smelled anything even when standing right outside of Izzy's, and I've been there a number of times.
Also, Izzy's front door is actually 349 feet from where I was standing outside of Wells Fargo. It's 4,385 feet from the intersection where I first noticed the smell. So it's probably not Izzy's.
There's a bakery about 100 feet from that corner. They make 21 different kinds of cookies and various other assorted pastries. See: http://goo.gl/maps/DHFmn