My cat peed on my brand new duvet & blanket, what do I do?

I just got a brand new duvet and alternate down blanket and one of the kitties peed on it last night.

The blanket says it can be machine washed, cold with a delicate detergent and then just rinsed once or twice after that.
The duvet cover, it is multicolored, but mostly different shades of green and white. It says machine wash cold, separately, on a delicate cycle. I am worried it will shrink (I am not too familiar with the washers and dryers in my new apartment building), should I bring it to the cleaners?

Do you think washing these on my own is a bad idea? I feel like the blanket, since it doesn’t have feathers, will be okay but I am not sure about the duvet.

Also, is there a product (i.e vinegar) that I should add to the powder detergent to better ensure that the stench will go away? Thanks for your help!!!