Yeah I would leave it, I had it happen to one of my IDs and I cut the net and he just had a peice of it left on his fin and after about 2 days it fell off.
Glad it's not just me then.
I'll give it until thursday night and if it's still on i'll get the pliers out. Doesn't seem to be any movement problems just swimming normally hence I don't feel the urgency to operate now.