I've done it. YMMV but it doesn't work too well under certain circumstances. Heading straight into a light rain then most of the water winds up behind the drive/ pass seats, but...
when you slow down or stop... and the rain gets heavy and/ or comes in at an angle... then you're getting soaked.
I've wound up under a few car-wash bays and under a few gas station awnings over the years lol.
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