R400 duratec oil overfill

Hello all. I've done a track day this week and decided to top up the oil when I got home as it seemed a little low. 
I did a bit at a time, warming up the engine in between, but I think I overdid the last dosage and went over the maximum marker. 
I took it for a whizz around the block (nothing too strenuous) and couldn't see any smoke or hear any weird noises. Oil pressure seemed to hover around 6 bar at higher revs. 
 

Should I get some oil drained or should I be okay? Thanks.