Well, if Aurors have already asked him questions about Harry, and he's not had anything to do with the trouble, really, then he doesn't have anything to worry about and they'll know it's all in fun.

But if they did come and talk to him in the first place, then it's obvious that they thought there was something to look out for, and I wouldn't blame Harry in the slightest if he decided to stay clear of Weasley.

And you should do, too, if you're so worried about the consequences.