Something about that explanation sounds fishy to me. The part that they lost just enough air pressure to confuse?????????????????????

Very confusing. Are the locking pins and slide operated by air?

I was expecting you to say the slide pins were not all the way seated or the slide was not all the way on the stops.

That phenomenon can also occur if by chance you take out an emergency air line to a maxi by kicking something up off the road. A blown air bag or tire could take one out too. Or a fitting crack and failure on the emergency side.

Probability: slim to none but it happens. Another good reason not to run the center lane.