I'm surprised you can't get them with a 3/4" drive breaker bar and a cheater pipe?
In the spring Billy, Cosmo, Sweet and I removed a set of wheels from a truck for John, in a junk yard in a brier patch. It took us half the day, but a 6-8' pipe and they all eventually came loose. They were Budd wheels and did have left hand threads on the left. Some of them were extremely tight, took two of us bouncing on the pipe at once
Before you call the service truck I'd get a stout breaker bar and a longer pipe.
Grigg