If you want to spend your time searching for a company that is open on Friday evening that will have the right equipment to tow your Minnie Winnie, then do it yourself.
If you will get antsy waiting for 2 hours at the side of the road waiting for the company the RV assistance called, then do it yourself but the one you choose may not come any faster.
If you like the idea of making one call and then sitting back with a beverage of choice while waiting for someone to come take care of the problem then get a service.
As for me I chose the beverage route. Very happy I did.