He's definitly not new to reptiles and really takes care of his pets. I mean, he puts so much time into keeping this huge iguana, I don't think he'd have a problem adjusting the husbandtry for his bp.
When I told him I noticed the wheezing, he had no problem going and turning the heat lamp on, and thanked me for noticing. Given this, I really doubt that he'd be defensive if I told him a few things on how to better care for the bp.
I'm thinking I can go about it like this: "Hey, I checked up on the wheezing sound I heard. I read it could be this (talk about RI)....which is caused by this (explain the improper heat supply)...and so on.
I'm not sure about how to approach him about the hides though. This snake DOES NOT seem stressed in any way by just having a towel to hide under. Its not how I keep mine (Amber has more places to hide than Osama Bin Laden), but i figure if isn't broke, don't fix it.