Sorry, distributing scripture is well intentioned, but it's evidence of them :
a ) Having more money than sense.
b ) Having no idea about adult converts
If mass distribution of scripture was an effective method of evangelism, then why didn't the Gideons Bibles that used to be in most cheap and mid range hotel rooms have any effect? And why do most hotels eschew having Bibles in their rooms now? Because Christianity is at best seen as a quaint anachronism by most members of society and at worst it is seen as judgmental and intolerant.
Most of the Christians I know were either brought up by parents with faith or discovered Christ's message in adolescence, between their mid teens and early 20's. But it's entirely different for grown ups. As a yuppie "mature age" convert (I was 39), I found so much in Church doctrine that clashed with "secular morality" and which was exceptionally difficult to accept without faith because it contradicted so many things I had been taught about proper behaviour in our society.
But to find faith as an adult, one has to be prepared to abandon one's previous life, lay bare one's soul and beliefs and pray. The vicar that tutored me before my first communion commented that converts from my demographic were exceptionally rare. Put simply, almost no adults will convert unless they know active and practicing Christians. I was curious about Christianity for at least five years before I went near a church, but no one I knew had "come out" as a Christian, so there was no one I knew that I could ask about their faith.
If they want to convert people, they should mix more with ordinary secular society and understand the way that the 95% of the population who aren't Christians think and live their lives. One example of this insularity is the very inward looking Christian muso festivals where people preach (or in this case play) to the converted, rather than play in ordinary bands to non Christian audiences.
If people actively socially mix with non Christians and join groups without religious themes, they will be able to understand how and why some of the more purist interpretations of scripture alienate people who might otherwise embrace Christ's message. Just as importantly, if they quietly admit their faith (say by putting it on their Facebook page), they will be surprised be the number of curious questions they will receive. I certainly have been and I think at least one person I know is now undertaking their own search for faith.