Where's the Fire?

After getting back to the motel by light rail — my van is still in the shop with no pickup date yet known, although I hope for tomorrow afternoon — I fixed myself some dinner. (This is why having a mini-fridge and microwave oven are near-musts for my motel stays here) After that, I knew I needed a walk, and headed out for a walk along First Street. I immediately smelled smoke. There was a fire somewhere in the area. After concluding by the lack of people rushing around that the fire wasn't immediately around us, I investigated further. There was a helicopter hovering to the north, near US-101. I decided to walk in that direction to see what was up. From the general direction of the plume of smoke, I thought it might have been at Casino M8trix or the Doubletree (ex-Red Lion) Hotel, formerly the Bay Area's Fan Central Station. But by the time I got down to the freeway (about 2.5 km), the smoke had dispersed, the helicopter had departed, and there was no sign of further disruption. Rather than walking back to the hotel, I caught the next light rail train going my way and rode back down North First Street. I never did find out where the fire was.