This may feel like a good idea as a “gotcha” justification but it just doesn’t matter. It’s still extremely abnormal and you will stick out. The only way to protect yourself is by blending in, not sticking out.
I think it would work. It's plausible enough. It doesn't have to be the most common answer to be accepted.
i am familiar with a number of the security team personnel, so i can give you the inside perspective.
the reaction you provoke at a border crossing, or an LEO encounter is almost entirely based on what profile you fit.
the vehicle, the state/contents of the vehicle, what you say, even how you move, are being evaluated for consistency with a profile.