There are several indications that this is a contrived email.
The one big one is "Her husband ..... races snow mobiles"
Now most folks in the lower 48 are beginning to learn that Alaskans use the term 'snow machine" not 'snow mobile'.
The writer of this email complains they must travel to Wasilla to buy groceries. That would mean they are West and Northwest of Wasilla, an area even more "Redneck" than Wasilla. And an area where 'snow machines' are much more prevelant.
The expected slip for an Alaskan would be to use the term 'snow machine' to others. An educated person, being sensitive to terminology might think to draw the distinction, but here I think not.
It sounds like someone crafted an email around some obscure observations and is pretending to be someone from Alaska.
It is very possible that it is someone living in Alaska.
As I know from personal experience, many federal employees of various departments (say the BLM for instance) are hired right out of very liberal colleges/universities and go out west with feelings of enormous contempt for the lowly local rednecks.
But how this e-mail with its dreadfully elitist, sneering remarks would turn anyone against Sarah Palin is beyond comprehension.
It makes the writer of it a creepy, small-minded snob.