So, the landlord where I work dunked the flag into the gutter in memory of Lindsey Graham.
(piefed-media.feddit.online)
To expand on the other reply, this is very much a violation of official US flag code. However, under our constitution, the flag code is in no way legally enforceable on civilians. The only consequences of this would be social, and since most people aren't aware of or don't care about official flag code, no trouble will likely result.