A fair few already have limits on vans, length height weight etc, I had a lwb high top that was over all of those the AA still arranged for a big recovery vehicle from a third party, normal guy turned, laughed and said that's not going to fit.
I've just realised I'm sounding like a frontman for them I'm not, but tbh they've never let us down, we do change to who is cheapest and will cover everything, just been lucky every time it's been needed it's been with them, over the years there have been many call outs, furthest was from Middle Of nowhere top of a moor way past Perth, relay all the way back, engine internals decided to leave van unannounced.