What would you do in that situation if it were you. I would personally choose to fail and not be apart of a system that does this, but it sounds like you embrace it?
Your question is about the current process though, and the answer is if you really do not have access to a room with internet that you can use for a couple of hours, the best thing you can do is to contact your school and see what arrangements can be made to accommodate you.
I actually have gone out of my way to, and have mostly successfully avoided that situations, and have gone out of my way to point out to schools the damage they are doing.
However, not everyone has that option, is willing to take that option, or understands the ramifications of not taking that option.
I hate the current system. I also understand why people choose to follow it.
Edit 0: It looks like maybe this conversation has hit the maximum depth for HN? If you'd like to continue talking, please feel free to email me.
Edit 1: Turns out I was wrong. The reply timer just hadn't passed. Still feel free to email me if you like.
To call it "embrace" is unfair to the parent comment. People get coerced to accept things all the time, especially when it concerns the future of their children. Very few people have an "all or nothing" kind of mentality when it comes to resisting establishment, especially when the cost of accepting is relatively minor. In this case, accepting the anti-cheat has a very low cost: enduring a crapware and spyware for a little while.
Your question is about the current process though, and the answer is if you really do not have access to a room with internet that you can use for a couple of hours, the best thing you can do is to contact your school and see what arrangements can be made to accommodate you.