I should be fine... my thermometer said 80, but after I pitched it in the starter, the container felt REALLY warm to the touch. I brewed yesterday afternoon, so if I don't see any bubbles by Tuesday I'll start to worry.
I was concerned about the propogator pack I started Thursday night as well. I never saw any activity in my starter.
I brewed yesterday anyway and I was still concerned until this morning. I ususally get action in my brew within a few hours. This one took almost 18 hours before I saw anything going on in my brew and now it's humming along nicely.