Modern smoke detectors have little to no problem with fog, haze and MOST theatrical smokes. However, pyro is a whole other arena.
At my event this weekend, I used a cheap DMX fogger, an AccuFog 1000(I LOVE this!!), an Antari HZ-300 hazer and an Antari ICE-101 ground fogger. This particular venue I don't think uses a fire alarm system. If the venue is on fire, they call 911 and run away screaming into the parking lot and run around in circles. Well, I don't see any detectors.
On Friday, I used the two foggers heavily. On Saturday, the hazer was on almost the entire time. The ground fogger got triggered for some extended runs by accident(we paused on some ground fog scenes by mistake) and the other two foggers had a fair amount of use.
Some venues have a NO FOG policy. It just depends. Check with the people who maintain the facility. I had this one band one time INSIST on running a fogger in a venue that said "NO FOG" and I was having to catch hell over it as if it was my fault. I told the band "DO NOT RUN YOUR FOGGER", but they didn't listen to me.
Some venues don't care, some don't know. Some don't know or care until they find out the hard way. Some that don't know may wish to find out, but since that often requires making an effort, it often doesn't get resolved.
Haze rocks though. I mean, I'm not really a fog guy, but haze changed my mind. The thin fog really makes beams and lights pop. It's definitely the way to go. Since I have to run haze heavily, I prefer going with a water-based option for all my atmospherics(foggers/hazers) so no residue is left on/in gear. This is mostly an issue with hazers since it works on what I think is called "mineral cracking". Not all hazers are compatible with water-based fluids, but the ADJ one is, which was what originally attracted me to it, but I liked the features of the Antari HZ-300 better. Water-based does NOT work as well as oil-based. The thing about the water-based that works for me is that when I turn off the hazer, it goes away faster, which for the shows I do and how I do things, I know how to work that in my favor.
As far as my policy is concerned: I don't offer fog unless the client asks about fog. I also have a rider that in the event of fog and any damages that may result are ALL on the client.
So, in summary, I'm glad you're happy with your new gear. Before you use it, please ask the management of the facility if fog or haze is OK. Don't expect them to know the difference. The odds are in your favor that in any facility less than 10 years old, you have a better than average chance of not having an issue with their smoke detection system.