Hurt 340

I was driving my car last Saturday and I over reved it and it started ticking. I drove it home, about 5 miles, and by the time I got home it was really making a load hammering noise. I took a valve cover off and one of the lash caps came off and was lying in the cylinder head. I removed the rocker and took out the loose lifter and it had a circular wear pattern in the center of it. It's still has the concave bottom. It's neighbor has a narrow wear pattern all the way across it. The cam looked new with no signs of any damage. I put it all back together and it idled fine.
Just wondering if it'll be alright. Or should I just replace the lifter.