They do pop up like that sometimes. Not a bike, but a motorcycle that i spotted on my rounds decades ago at a used car lot in Newport News, a Yamaha XV920 similar to the one I owned but elaborately personalized with hard bags and numerous lights all over it. Very distinctive and not likely to be duplicated easily. Cruising FB Marketplace just a couple of years ago and there it was, repainted blue but unmistakably the same machine. Resisted a massive urge to buy it for old time's sake.