Out of interest what make A-frame and how did it break. So I can check mine- Chris Cox-I have travelled over 40k miles across Europe Spain included with a cable A-Frame and the only time I got stopped was in Switzerland "car has no driver" the police were laughing and after deciding to get a blow up doll for the driver seat we all set off, down to Pompeii no problems done Berlin and down to Javea all no problems, I do think at times it is the mood of the copper in control of the finances that day which will get you done.
I have this year changed to a trailer not for the potential restrictions but my A-Frame snapped in France last June writing of the A-Frame and Car