Being a process server is an easy job. You knock on doors to deliver papers, and when the recipient tries to dodge service you spend some time tracking them down in a very mellow fashion (nothing like a bounty hunter), make a few attempts, and either report back with success or failure (describing each attempt and how it failed). You get paid either way.
You are generally expected not to get aggressive, feisty or otherwise combative with process dodgers. For one thing, you're not paid well enough for that, and for another, it's not a good look for a litigant to hire a process server who gets violent with the opposing party just to get papers in their hand.
It's easy to qualify for the job, too. Minimal criminal record, clean driving record, basic reading/writing comprehension, and a basic ability to not get lost in the fucking desert, swamp or mountains hunting for an obscure street address.
Yaniv holding this "esteemed" position means nothing. No RCMP will willingly accompany him since he's got such a history with them, and will probably quietly note any misbehavior if they observe any if forced. If he actually mouths off to a recipient who actually opens the door and accepts service, complaints can be filed -- you're not supposed to do that. People who accept service without incident are preferable for everyone involved. Enough complaints brings judicial attention. That might not matter up there in Cuckland, but enough attention and pressure is a strong motivator to kick a bad apple to the curb. The money just isn't there to keep an obnoxious server on contract for long.