It's not cheap and you don't really save a ton of time given the wait to get on and off...traffic on Sunday AM would be light to simply go around on the highways
Seems like dewpoints 70 or better have increased over the years....I'm about 5 miles inland from the sound-we get a breeze sometimes, but it often doesn't make it here.
None of the houses (Early 1970's construction) here on my street had it but just about everyone has had it installed over the years as the summers get more humid.