I strongly doubt they would do that. 1 vote is not enough to qualify a person anyway. It would be against conference policy.
Now, do they ever go against conference policy to just do what they want? Sure, and I'll provide a recent example. Our written discipline makes no statement forbidding the wearing of moustaches, but that's only because the original drafters never envisioned anyone ever wearing a beard, let alone a moustache. Just like there is no prohibition of blue dyed hair. So a few years ago some people started growing mustaches. Now, it takes 75% majority of the vote from the ministerial body (followed by 75% majority vote in all the lay membership in all churches) in order to change something in the discipline. They took a vote to change the discipline to outlaw the mustache, and they did not have enough support to advance. So it could not be added to the written discipline.
However, there must have been a simple majority that wanted to outlaw them, because the conference simply issued what they call a pastoral letter to all the churches, where they stated that they were going to abide by the time honored practice in our conference of not permitting mustaches to be worn. And so the policy was officially created without the 75% majority support that is normally required. And this is nothing new; there are other rules that are created by pastoral letter rather than through the official process. So this could be seen as the leadership going against their own stated policy. However in this case it was simply affirming a practice that was an unwritten tradition while not being a written practice, so I assume they would argue this was an exceptional case, they weren't technically violating policy in order to create a new practice, but to affirm an old one. This leaves us in a position where there are categories of church rules: 1) officially created policies with 75% leadership & laymembership support written in the published statement of discipline, 2) officially created policies without 75% support written in pastoral letters, and 3) unwritten policies that must be found out by word of mouth, observation, or a tap on the shoulder.
Anyway, despite all that, I do not believe that our leadership would manipulate an ordination in any of the three ways you listed.