Give it a week or two let em settle in. Was at comet on my boat when they were stocking didn't catch a single fish threw flies jigs spoons nothing went back a week later from shore got 14 in an hour
Whenever Walden stocks, we can hit our creel a day or two after. They Stocked on April 4 and it was dead. Saw a lot popping for flies on the water but no bites. I think when the water temp creeps up a bit, the trout will be more active.
I have done real well right after they stock (like a trout every cast); other times not so well. Have not figured out the pattern yet. However, I do C&R and try not to handle them so folks can catch them again.