Repeat step 1 once again on reaching the end of the street. At this point, you probably don’t know where you are and where you started but does it really matter?
The unpredictability makes the tour what it is. This tour lets you discover the art for yourself, making it different for different people doing the same tour.
When you spun and opened your eyes, you might have ended up facing the same street you walked down before. If you walk up the same one you walked down before, does the art look different from this side of the street, or does it look the same? Some street art is designed to look different from different perspectives. Maybe this time you caught it staring at you from the reflection in a puddle on the ground... or maybe from this angle it looks entirely different? Different perspectives could make the same art look different, showing that street art can be dynamic even when it’s not actually changing.