Had some time this afternoon so more out of curiosity than concern I went out to the trailer to do some RFI testing of all the LEDs I have recently installed.
Starting with all the LEDs off I monitored the VHF/UHF amateur bands with the Kenwood V7A that lives in the trailer permanently. I opened the squelch on both bands and turned on all the LEDs. I did not notice a perceptible rise in background noise. A local repeater gave its voice ID and sounded just fine.
So I moved on to the Concertone AM/FM/WX radio.
I started the test of each band with all LEDs off and then turned them all on. Again, no rise in noise. I listened to weak stations and empty channels. No appreciable noise that I thought I could blame on the LEDs.
And then finally the off-air TV. No problems. Even with all 10 remaining $1.50 Chinese E-bay LEDs lit, no detectable RFI.
I didn't test amateur HF radio as it was just too much trouble to drag the TS-570 out to the trailer and set all that up. Maybe next time we go camping. But I don't think there will be an issue.