(H)owling noise front right

[Beethoven]

At very low speed, e.g. in stop-and-go traffic I hear a deepish noise from the from front right wheel that I can best compare to that of an owl. It is periodic, i.e. depends on rotation, and I can feel it in the steering wheel. It also seems to be more pronounced when the car is very hot.

I'm thinking it is either a hung-up brake caliper or the wheel bearing. I wouldn't worry so much if I didn't leave on Saturday for a drive to Colorado, and from there to L.A.

Does anybody think this needs to be taken care of before leaving? If possible I'd rather have somebody in Boulder, CO look at it where I'll be staying for a few days.

If that's an option, question #2:what's a good Porsche shop in Boulder?

Thanks!