I had to do it yesterday. First time I've got the bus since I was a boy.
You're actually better off staying in the stadium for a bit after. I usually walk up to cessnock after.
The bq is in the Port. Must be a good 20 -30 minute walk. If you're brining a car you'll need to be well early to get a parking space. The best place would be right across the road from Cappielow by the water.