Just bear in mind there was a post not long ago about a guy who had a flat whilst in a service station on a stretch of privately run motorway in France.... he called breakdown instead of changing it himself thinking his insurance would cover the cost..... they refused as they wont cover private motorways....so check your smallprint.... personally i would be embarrassed to call out breakdown for a flat tyre unless legally bound to.... in a service area even more so...if physically incapable i would rather pay a fit local 50eu to help...