Question on hair?

I used a box dye to touch up my roots only not thinking I have hair apt tomorrow for highlights,. My hair is dark brown now and will be getting blonde, caramel and light brown highlights. My hair always reacts well to color. Should I hold off on going to the salon for highlights? Or will I be ok since I only touched up my roots? 
I know. Dumb move but I completely forgot I had the appt!