Yes. Very unlikely to happen, but it would be a second caution.
A couple of years ago I had an incident in a step 5 game. 5 minutes to go, striker wants a corner and I give goal kick. Striker goes apoplectic. I call him in to warn him regarding dissent at which point he responds 'just f*cking sin bin me then' and started walking off to sit in the stand. I said 'ok then I will' as I showed the yellow card to his back as he walked off (I'm not making any friends there for calling him back to confirm details and show the card to his face) and with 5 minutes to go he won't be playing any further part.
2 minutes later, AR1 flags me and tells me he's back on the pitch. I stopped play and called him over, cautioned him for re-entering without permission. He responded 'but you didn't tell me I was sin-binned'. I said that's because you didn't hang around long enough to find out. It is what it is, you've now been sin binned and cautioned, so I'd suggest you leave the FOP. He would not accept it and wouldn't leave and in the end I had to show him a second caution and send him off.
I'd like to think I've maybe learned some better management techniques and may deal with it differently now, however I do believe that this was a problem entirely of the players own making.