In California and Minnesota, it's illegal to mount anything to your windshield. And almost every state has a law against obstructing the driver's view, leaving the legality of the GPS mount to the officer's discretion. Judging from the plethora of items suction-cupped to windshields, we don't think you're likely to get hassled, but dashboard mounts are a good alternative. We used a Daystar upper dash panel for our Wrangler. Hook-and-loop strips mount the Garmin, but leave it easy to remove. Wherever you mount it, make sure it doesn't block your view or obstruct possible airbag operation.