i believe they will know but if u go there and see how they do, i think u will do fine. they'll start from the back of their building and let u drive on the local road west of building. 

i would say, go there and see how they take the test. normally after office hour, u can practice. if u practice and take the test there itself, its gonna help.

 one of my friend who had the same situation like urs did well there. so......good luck!