David Taylor has made himself look like a complete twat, both for allowing the flowers to be picked and for filming/publicising the police officer's intervention. Of course the officer took the flowers, police don't tend to allow people to keep hold of the proceeds of their crime! The police showed sense by sending the flowers to a nearby care home, so well done to them for that too.
The police come off very well out of this, I suppose with David Taylor the phrase "give someone just enough rope to hang themselves" springs to mind! (Figure of speech, not literally.)