Can a police officer frisk me for if I tell him he's no good at his job?

The other day I was involved in a small fender bender. I called the police for a report and waited for them to show up. when the cops got there they were clearly agitated at being out in the cold for a minor accident. I felt I was doing the right thing by calling them, the accident was not my fault and I didn't want to run any chances of it coming back on me. The cops get there and having just moved from Ohio to NJ I had no idea that a physical paper of your insurance was necessary. The cops end up taking a report which they threw on my lap and then handed me two summons for failure to show insurance and registration. I'm frustrated at this point, I've not had a decent interaction with police ever and as they are walking away I say, you guys are pathetic at your jobs. The cop forces my car door open pulls me out and puts me against my car while he searches me. I don't see how he could suspect me of a weapon at that point. Is this legal?