Welcome jsage! I would wholeheartedly recommend AAA. Pay for the additional coverage that comes with the Gold membership, and add RV coverage. While they might not tow your trailer, they will come change a tire on it with the RV coverage. The gold coverage means they will tow up to 100 miles, instead of the regular 20 or 25 that come with the standard membership. Worth the additional cost in my opinion.
We came to really appreciate the membership when Kay ended up in a fairly deep ditch on the Boundary Waters trip 2 years ago. Up in the middle of nowhere in Northern Minnesota. One call to AAA, and 60 minutes later the tow truck showed up. But they needed 2 tow trucks to get the Excursion out. So, another wait of about 15 minutes, and then 15 minutes to pull her out. My point being, it was one phone call, and didn't cost us a thing to have 2 tow trucks pull her out.