My dad had a similar thing with his car. An old jalopy, I don't remember exactly what was wrong, something slipped out of place in relation to the engine, miles away from any support.
He happened to have clamps in the back, put a clamp on it and a few rubber bands for good measure. When he finally got to the garage they looked at it, laughed, then suggested that he keep it that way, given that the parts for the car were rare and the fix was reasonably expensive. I believe that he ended up driving on that for a couple of years until the car broke down from an unrelated part failure.