It depends
Yes, cops are human, and make cock-ups like anyone else.
However, the one thing we were always taught:
"No-one gives a shit if a plumber bangs the girl down the street whilst he's married to the girl up the street, but they will if it's a cop."
It can be frustrating. I'm a cop in Scotland and sometimes there's a great opportunity to have fun and enjoy yourself and show a good, friendly, human face of the Police but if someone snaps it on their phone, the chain of command might not find it so appropriate.
Case in hand: I was manning a rugby match. A Welsh team was there and I was patrolling the front of the stands. Guy with Wales cap and mini rugby posts on it, looked great. I was passing by for the 'nth time and he waves it at me, asking for a swap.
I would've loved to, it would've been funny, people would've appreciated it, but I would've got my fucking arse kicked for it.
You can't win, hence why so many of us are dour bastards. Social media means you can't get away with anything.
Commonwealth Games, the guy in the Clyde outfit was told in no uncertain terms to make sure he came and gave us all a hug in his outfit for a quick selfie but our boss went fucking mental.
Posting anon so I don't get sacked too!