I agree the warning pop-up (that returns as soon as you dismiss it), is super annoying and distracting. You have to go into the menus (while it keeps popping up) to disable the safety feature requiring the front radar if you want the warning to go away. And messing with menus is a hazard in itself while driving. Not ideal. I would love a button to press for when it's snowing (pretty common occurrence where I live) to turn off the safety features needing front radar. One more button for when I use my hitch bike rack to turn off the relevant rear sensors. Those would be great quality of life buttons.
Happened to me yesterday on the Mass Pike. While I dont have a problem with the truck stopping functions based on sensor contamination, what drove me crazy was the warning message that keeps popping up every 8 seconds (Yes I timed it) to tell me functions are not working. Tell me once and just display a little icon.
OP - same up here in N. Va. Cleared the front grill area but still had sensor annoyingly beep when stopped about object in front of right front sensor. First time so like the rear brake when bike rack attached to tow hitch, got to adjust the warnings.