Is it a hazard to use spray foam around baseboard heater pipe?

I probably should have asked this before doing it, but I will now anyways.

I have noticed mice coming in and out of the (fairly large) hole where the baseboard heater pipes are. I removed the casing and added a bunch of steel wool to it + spray foam. I am now concerned if this is a fire hazard – having all of this dry foam near a heater?

I attached photos of what the area looked like before / after.

Thanks!