OK. I'm not getting involved in the arguments but here's my take on it.
I live in the UK where, depending upon where you live, there are police helicopters, complete with thermal imaging cameras. Some counties have them, some don't.
About 3 years back I had a 600w HPS grow going in the loft. No tent, no insulation. One night, at 2 a.m. a police helicopter hovered about 30 feet above it for a good 10 minutes, pointing straight at it.
Hence the fairly large wedge of cash spent on polyshield the next day.
Nothing came of it, but I lived in a fairly 'high-profile' sports facility at the time and the grow was intentionally placed above the shower blocks (Where I figured they would assume the hot water tanks to be) and a bust would have been a major embarrassment if it went wrong/was a mistake.
Now, although you are only running cfl, there is 504w there which is pretty close to what I had, possibly more on the heat signature due to the greater inefficiencies of cfl. However, I think my mistake was a loft grow without insulation. If it's in your house, in a cupboard or tent etc, I see no problems. It's when it's producing heat somewhere not expected that it may be a worry. Then again, my mate (a non-grower) has his washing machine and tumble dryer in a shed in the garden and he hasn't been busted yet!