So, since this is related to your course and a required part of assignments, get things in writing,

1. Let the Dorm and ISP know that you need an exception due to coursework.

2. It might be in your best interest to temporarily invest in your own internet,I think 5G might have low enough latency to manage the connection.

If all this is for one semester until you move back ? Just get a cheap mini-PC install pfSense or any other firewall/router software to isolate all your devices and Wifi router from the rest of the network. I believe some people have mentioned MAC-spoofing and TTL-reset as ways to bypass detection. And if anyone asks, you can show your written communications and your course requirements.

Always be on the safe side when it comes to dealing with academics and private orgs.