Yep! Not only have I always done it for my cars but after showing it to friends and family they have all done it on theirs. 50% is dark enough to help with glare and eye fatigue but not enough to cause much issue at night and cops usually cant even tell its there (Yes its illegal).

In fact, have been stopped for window tint a few times in other cars and never once have they said anything about the windshield. In one case the cop looked straight at the windshield, measured the strip at the top (5%) to make sure it didnt go below 6" and then said, yep, windshield is fine .