If he continues i would mute him and if he continues after he got unmuted i would warn/kick him from the server (depends how bad he disrespected).
You should most likely warn him if you're going to mute him. We don't usually just mute people and leave it.
Your activity isn't great, as you've only been playing for 3 days. If you maintain somewhat strong activity until Friday, then you'll have around a week of activity. This isn't great, but could be acceptable if you prove to be a strong potential staff member; meaning you should try and help people to the best of your ability, contact staff members when there's rule breakers on, interact with the players and get involved with the Deathrun community. Trust is something we don't have an issue with here of course as you're a Super Administrator on SSRP, showing that you're trusted, but you're still going to have to prove that you will be dedicated.