Canāt see them staying in place. Car wash would likely rip them out. Iām also in the camp, can see rust forming around them over time, salt sand, moisture trapped in them.
What mods or even simple adds we do or donāt do to these trucks is up to the owner. However in defense of the manufacturer here, these caps are well made and snap into place leaving nothing to catch in a car wash. I have been through a car wash four or five times so far with no issues. Also feel under the jack point, there are drain/vent holes to keep things dry even with the caps on. That said I will pull them every once in a while and spray some WD40 in there. In my opinion they look good and add a finished look to the bumper, but hey they may not be for everyone.
as someone who has had rodent damage done to my wife's Highlander . we had a fig tree & the damn things were stuffing downed fruit into various voids in the car. They were using the voids to eat figs in private away from local kitties . So just because you can't for see a problem doesn't mean it's not there.