No, one must agree to the technical standards BEFORE showing up to the interview. I received a letter from the admissions office to this effect. It is possible that applicants must also sign a hard copy at the time of the interview...I am not sure.
Below is an excerpt I cut and pasted from my status page.
"As someone invited for an interview, you must read and confirm your acceptance of our Technical Standards form. If you have not already done so, please do that now by clicking here. "
Again, I received notice that I must do this BEFORE my interview. (This notice was in the interview information packet that they mail out.)