Mary didn't bother to protest when Dominus lead her to his car and put blindfolds over her eyes.
Normally she would have said no, or at least let out a curse. However, she felt so exhausted over a week-long of being tied up in his bed.
The fact of being tied is not the exhausting part of course, it is what he does to her while she was in such a defenseless position that took away all of her energy.
So instead of protesting, she welcomed his request that she get dressed in casual outerwear and was led into his car. She wore a simple shirt and skirt as he requested, and he wore matching pants and shirt of the same color.
She was so grateful to have even a momentary rest that she didn't let out even a word when he blindfolded her once she got inside the car.