I partially agree - The washer fluid my dealer puts in is a weak orange color and does seem much too concentrated and yes; it's soapy and dries leaving a stain. I mentioned it the last time I was in for an oil change, and the service guy stated that other people had mentioned it - but it's genuine BMW washer fluid; so that's what they are sticking with.
As far as the overspray; I don't have that problem - I'd say it's an adjustment issue.
2011 328i xDrive Sedan - Deep Sea Blue Metallic / Saddle Brown Dakota Leather / Dark Burl Walnut / Style 285 Wheels
Auto / Value / Premium / Comfort Access / Xenons / Sat / iPod & USB / Heated Seats & Steering Wheel / De-Badged / Rear Fogs
Lux AEs / GP Thunder Fog and Corner Bulbs / Pinnacle F1 Tint / OEM Spoiler / Hardwired Escort and Garmin / Interior LEDs
Big Ass Grin