Reported neighbour now potential backlash, was Ibu?

[FailNameC]

For context the house next door to me in a back to back, the one at the back is a housing association house who currently has a male tenant, he comes and goes. Last summer he was smoking weed in the garden whilst my children were playing and I asked if he could put it out which created some animosity.
He's currently having a party with 4 other people, loud music etc.
I reported it via the 101 website.
Police have been out and asked them to turn music down, they all said they lived there and the police left.
I could hear him once the police left something about 'stupid cunts next door' and 'I'll pop windows'.
I'm scared now! Wish I hadn't done it.
Wibu?

If the music is a 1 off I wouldn't have reported them but if it was all the time I would report them' Everybody as a party every now and then Me and my Neighbours (from one side of me) we let each other know before hand which I think is good. Don't let it get you down and if they ask if it was you just say no you didn't hear a thing but if they start to be trouble keep phoning the police and the H/A and environmental health.