I am in the middle of completing a 3 tier (12, 10, all BC cake. I am very concerned about transporting it to work tomorrow. I am going to work at 10:30 am. The work event that the cake is for doesn't start until 5:30, so I assume that the cake will be cut around 7pm. If I put the cake in the freezer tonight (to make it easier to transport-it's already stacked) until I leave for work tomorrow, it should be completely thawed by 5:30pm right? It will be at room temp all day. The other option I am considering is to get up at 5 and pop it in the freezer. This way, it will be in there for about 3 hours, instead of 8. What do you think?

I think your timeline is fine, but personally I wouldn't freeze a cake if you will be eating it tomorrow, I would just refridgerate it so it gets nice and cold.

Only problem is I have a tone of space in the freezer and NO space in the fridge for the three tiers. I think I'll go with the plan of putting it in the freezer for a couple of hours instead of overnight. I'll set my alarm for 6 and leave it in the freezer til 8 or nine.

leaving it in all night, will not hurt a thing..... it will be delicious when they do eat it.