Munger Sign on Private Property!

An email I received this morning:

I have an unauthorized sign advertising Mr Munger posted on private property. It is a vacant parcel #500-04-371 in Yavapai County. I appreciate the immediate removal of the sign and an explanation why it was placed without permission.
Signed,
[PERSON]

My response, in the form of a letter--
Dear PERSON: I'm pretty sure you are writing from Arizona. At least, there is a Yavapai County in AZ, but there is not one in North Carolina.

Yet you have contacted the MIKE Munger for Governor campaign, in North Carolina.

May I propose that you contact instead the JOHN Munger for Governor campaign, in Arizona.

I thought about saying that I would appreciate an explanation on why would you would send unsolicited spam to a professor in North Carolina, but people make mistakes. That may be the reason that there is a sign on your property, also.

In any case, it's not my sign.