Drive around in Limp Home Mode

My car is in Limp Mode due to a problem with an actuator in the exhaust system which isn't opening properly (VX words not mine) which is basically bring the emission system light on and putting the car into limp mode (phew not my tuning box as I first worried).

But the part is on 7 - 10 day back order, I have already had to do 250 miles in it like this, and easily need to do another 350ish before they get the part.

It's hard work driving it like this, and not much fun in rush hour traffic either. I just wanted to know if this was okay

Cheers