UPDATE, I did my next fill up.
I used a different pump this time, to make sure it wasn't an early click, and I got my MPG calculated to be 39.96 so roughly 40. I suppose the 52mpg did result from a possible early click on the pump, but I refuse to accept. I'm keeping my chin up and say I'm part of the 50+ mpg club.
My driving between fill-ups was more city driving as well, not as much to-from work. More so shopping/town hopping. But overall average between fill-ups is ~ 46mpg. Numbers don't lie.