I was there on Saturday night. Was wearing my Harper jersey T and a Curly W cap. I can count the comments I got on both hands, but only a few were really derogatory.
I had seats I bought on stubhub for like $3 in section 305, which was well represented by Nats fans. Me and my 2 friends (non-Nats fans, but they were wearing neutral clothing) were confused about out tickets, as we had Row "F" and all the rows were marked with numbers. We had seats that were in their own row over the entrance from the concourse. We were trying to just go to open seats, but the strictest usher I've EVER seen came to assist, and booted some Philly fans out of our seats. They were incredibly upset that they had to leave those seats for the "Nats Fans" and that they paid to be in that section as well. Needless to say, about 2 minutes later we got some hot dog wrappers thrown at us, and about 15 minutes later, the one kid came down looking for his iPhone he left there, and tried to accuse my friend of hiding it, even though it was right where he left it.
After the game, I went to check out Xfinity Live. I didn't expect it to be too bad, seeing as how we lost. And it was enjoyable. I had to deal with a few comments from bartenders, but overall it wasn't bad, until one fan felt the need to walk over to me, get right in my ear, and tell me I was wearing the worst Fn shirt he's ever seen, and calling me an a-hole. I responded with "Have a Nice Night". The rest of the night he kept staring me down, but I think he was just really drunk.