We were travelling on the AP1 the other day to get from Spain to France (sorry cant remember what section) and we stopped for lunch at a motorway services. We were seated at a window eating lunch and we saw a red car pull up & the occupants get out and go into the garage (services was in 2 section ns, restaurant first & the garage a little further on), shortly after a burgundy car pulled up and a young female got out of the passenger side, my husband said to me "that girl has dropped all her money as she's got out of the car", as she started picking it up a man & an older woman also got out and they were standing quite funny as the girl collected all her money but we didn't think anything of it and carried on eating & talking. I then noticed that the man was down looking like he was collecting money & then he stood up & the girl got down again. At this point I thought something funny is going on! She then got up and they all got back in their car & appeared to drive off. We were saying how strange that all seemed & what could it have been, then the red car occupants arrived back at their car & reversed out and then we saw that their rear tyre was flat. Our first thought was that the red car had pissed off the other & that it was a revenge thing & then we saw that the burgundy car hadn't left the services at all & was following the red car back onto the motorway. It was at that point that my husband shouted "they are going to get robbed" and we ran out to the van. We could only have been 3 or 4 mins behind them but whilst driving at considerable speed we just couldn't see them. After about 10mins, & we had given them up as having gone off our road, we passed a layby & there the 2 cars were. Unfortunately we hadn't seen them as the red car had pulled in and parked in front of a lorry, and we were going too fast to stop once we did spot them! But what we did notice was as per all the warnings, the burgundy car had pulled in front & was appearing to help with the tyre change. My point of this post is just to say that we believe we witnessed a highway robbery & it may not have been a Motorhome or caravan, but it could so easily have been. I feel terrible guilt about not being able to do anything but my baseball bat was well ready had we seen them at the side of the road as we expected. BE SAFE EVERYONE.