> the world is better if everyone can have a bit of fun, even police
Police have plenty of ways to have fun that aren't Fourth Amendment violations.
If you wanna give out free ice cream cones, station a cruiser with a sign saying so. People can come to you just fine, without the "what the fuck, why am I getting pulled over?!" worries. The banana guy at least has an inkling of why there are flashing police lights in his rearview, but that doesn't make it OK.
Sure, I agree about the ice cream cones for random people. But the banana car guy is basically opting-in to getting lots of attention.
(And, yes, I realise that this is exactly the same shape of argument that turns into victim blaming when it's about cat calling or worse. No, I don't have a principled way to distinguish the two cases.)
Opting in to getting attention shouldn't imply anything one way or the other about how often you get pulled over. In the real world it does, because the police are a collection of humans and will misuse powers they are able to, but that has no bearing on what's supposed to be right or wrong - it's just the realistic expectation you'll have to deal with.
Well, especially in a democracy what's supposed to be right or wrong is heavily influenced by what the general public wants and accepts.