Not sure exactly where you guys think you are going with all the questions about safety of parking at MHT but you sure have made my day LOL...
MHT is a nice, little airport in a nice, little city with an unbelievably low crime rate, and it has absolutely 1st class services. The garage is maybe 100 yds from the terminal. The economy lot is about 3 minutes away. From the SW counter to the security gates is maybe 100 feet, including an escalator ride! Baggage claim is at most 50 feet from that same escalator when you come home. The place is a snap and why anyone would fly out of Logan when they could fly out of MHT is beyond me. (And believe me, I am forced to fly out of Logan every other week, so I know whereof I speak!!)
Anyway, there is plenty of food at MHT: a Nescafe Cafe, a pizza place, McDonald's and DD are all before you go thru to Security. There is even a real sit-down restaurant that isn't bad. There is also food on the other side: the McD's as well as a couple of take-out places run by a local restaurant. There are plenty of news shops, etc...
The TSA there is super. Even if the line looks long, I have never waited more than 10 minutes. They pride themselves on moving the line quickly. They are also the friendliest TSA group I've seen.
For any of you coming from a long distance for a very early flight, there are several hotels nearby and on site. SpringHill Suites is brand new and on the premises. There is also an older, but very nice hotel, the Highlander, that offers a park&fly program. About 5-8 mins away, there is a Holiday Inn Express that opened a few weeks ago, a Fairfield Inn & a 4 Points.
I hope you all will enjoy your experience at "my" airport!