AC shroud damage, but from where?

[grantsoo]

Just curious, has anyone crossed the border into Sarnia Ontario recently?
Years ago I crossed with my 2002 Itasca. Followed the signs for RV's which included cars.
Was very concerned and watched my left mirror going through the custom's booth to make sure I didn't hit. Glanced over at the right mirror and was horrified to see it had been travelling with about 2" clearance. But got through ok.
Story does not end.
Went through Sarnia and over to the KOA in London.
Did my walk around the next morning before leaving and the shroud over my AC had a piece missing at the top rear, about a 8" slice of pie gone.
Only place I could think of with potential contact was the custom's booth, but I didn't hear anything.
It happened in 2010 and I'm still puzzled about what happened.

[norty1]

No clue but stuff always happens. Just be happy the ac wasn't knocked off like my father in law in a rv car wash.

Those shrouds are easy to find online. I see them often completely blown off on the interstates.

[FPM III]

I replaced my Coleman’s shroud when stress cracks appeared around the mounting holes with a MaxxAir Tuff/Max.