Nothing like a little bit of discretion on the part of cops to arrest whoever he wants to, for "disorderly conduct."
if i am posted somewhere and there are people blocking the entrance of the establishment, yelling at people entering lawfully, perhaps threatening them, following them, writing their license plates down, taking pictures of them, etc..., that is harrassment. and if they have been warned to stop and they continue, that can be discon as well. i, of course don't know the whole story. you'll forgive me if i need more information than this ministries account.
i am not saying there aren't some cops who abuse their power, but for every bad cop you hear about, there are thousands who do their job right and never get (or ask for any) press.