Right, if Google doesn't think you are in the US, you won't be able to download Voice from Play. Which is really annoying if you actually are in the US...
Many ad networks[1] do already provide an opt out mechanism. You look for a blue icon[2] in the corner of the ad, which if you click it should take you to an opt out page.
I dug a bit further, and also found this: http://www.aboutads.info/choices/ which purports to allow you to opt out from any or all of the participating companies from that page.
"As a solution, Gelernter proposes moving all of human knowledge to online servers so that the in-person college experience can be replaced by user-driven self-education."
I had to deal with this problem earlier this month, and the answer here fixed the issue for me: http://android.stackexchange.com/questions/44677/how-to-chan...