I think most of you are also overlooking the fact that your are campaigning for women who can make educated decisions but that does reflect all of society. You cannot make a law and then discriminate who it can be applied to after it has been passed.
Given the choice of being given the second pill, and heading home on the train or taking the second pill at home, I think for all women, no matter their educational status, the second scenario is clearly preferable.
Ideally, there would be the option of having the pill at home, or having it in the clinic and staying there, but if that's not going to be the case, forcing women to miscarry on the way home is nothing but barbaric.