I had to use the RAC a couple of years ago whilst taking friends to the airport 150 miles away, had to ring them a taxi and pay for it so they could catch their plane, the recovery guy took around 90 minutes to arrive and a further 2 hours to do a temporary fix, although I arrived home over 4 hours late I did get it home to be fixed at a later date (very badly and not properly after 6 attempts, not going into that).
Overall I was happy with the service, the guy asked if wanted him to fix it as a recovery truck would be over 8 hours to get to me!
As a disabled customer you should have had priority and not been kept waiting 7 hours, I did inform them I was disabled and they said I would be on priority list and kept informed every half hour of eta (which they did).