When I had the Gamiviti put on, within a few days I had the iKamper roof top tent mounted. Ever since then, it's been too high to fit going through any car wash.
For washing, if I feel like dropping a $120.00 clams on a wash that includes the entire entire interior vacuumed and cleaned, I take it to the local car was, where most the vehicles can go on the track and be pulled through the was. When I take it there, they have to do what they call a "bucket wash" because it doesn't fit through.
My next "go-to" is one of those self wash with the pressure washers. $3.00 bucks for 15 or 20 minutes of wash that includes suds, clear coat wax (or whatever), pressure wash, etc.. They must have a reverse osmosis water filtration system or something, because I just jet dry (read: 70 mph) and it is absolutely spotless! No water spots at all!
When I have time (and feel like getting off my butt), I'll just wash it my self in the driveway. Problem is, I get a little ADD and it turns into an all day event.
But if you only have the Gamiviti rack with no accessories mounted, yeah, should be fine going through any car wash, either the drive yourself through, or the standard, usually car wash. That is one of the reasons I really liked the Gamiviti racks, they are very low profile for car washes, underground parking and most all covered parking. I don't believe anything should bet snagged or break. In the car wash, I mean. Not worried about your rack, those are pretty bullet proof!