My Xfire was 3 years old when I purchased it from a dealer in '10. The carfax revealed it had a single owner before me. Show room condition then and now except for one thing...

So I'm casually discussing a trade in (tempted to get a Challenger R/T but still undecided) with the sales guy that sold us a new Jeep GC last month and he called his trade in appraiser over to give it a quick once over. The guy came back and said "You know that cars been wrecked, right?". Shocked, I asked why he was making that claim. He took me over to the car and showed me a 'drip' in the clear coat on the rear bumper. Of course I knew about that drip having gone over it a thousand times while hand washing and waxing but always chalked it up to a factory blemish. There are no signs what-so ever that the car was ever in an accident by looking underneath the car, inside the rear wheel well etc.
I suggested he put it up on a rack and show me tangible evidence of the car being 'wrecked' and repaired, a big difference to me compared to perhaps a bumper scratch that the previous owner had repainted, or my assumption of a factory blemish. So the body shop perfectly matched the paint but did a **** poor job on the clear coat and the owner didn't have them sand it out and redo? Possible, but unlikely in my opinion.

So he refused to look at the car from underneath and threw a trade in value at me that was $2000 less than the sales guy said he would give me for it. While I was still laughing at his offer he commented that he doesn't 'trust' that the car wasn't wrecked and repaired.
I told the sale guy what I thought of the situation and his appraiser and told them I was taking my business elsewhere, this after buying a 2013 Jeep GC and a 2010 Wrangler for my daughter back in '09. This is a Chrysler/Jeep/Dodge dealer.
Anyway, I scanned through some search results here and didn't find anything on discussions about factory clear coat 'drips' and was curious if any member here had any similar issue with their clear coat.