Out on track you mean?
I seriously doubt tampering with tyres off the track would be allowed (or was allowed) in any way whatsoever.
No, it was in Parc Fermé - like Abyss says 'reconditioning' the tyres.
I'm sure Ted's explanation was along the lines of a flat-spotted tyre is like a 50p piece, and after Quali they are allowed to trim the corners off to make it round again.
I remember that - reconditioning the tyres, effectively. I'm pretty sure that's allowed.
Glad it's not just me that remembered it - whether it's still allowed or not is another thing.
Where's Skeeter with his rule book?