I stay at WALMART quite a bit on even planned trips. Looking at my home location you could likely guess why. I sometimes travel 10-15 hrs and 500-800 miles in a day. No reason to pull into a CG at 11pm just to be pulling out at 6:30.
I run ours when catching sleep at Walmart, but they are eu2000's so I doubt it compares to your question.
The advice I'd have is don't park next to other rv'ers that aren't already running a loud generator of their own. If after you're running someone parks next to you then that's on them.
I'd be hacked off if someone pulled in late beside me and cranked up something like that. That's all I'm saying. Avoid that and I'd have no issues with you being in the same lot as me.