That really is bad timing.

If it is a clean break then usually you can effect a temporary repair by taking top of the broken section and sliding it up inside the bottom of the broken section and pulling through as far as you can. This gives you a reverse overlap of between 4-10" depending on where the section snapped. Wrap some duct tape around the join to prevent splinters and keep the joint together.
The above will usually keep you going for the day. When you get home you can make this more permanent by putting super-glue between the two sections and then taping the rough edge. This can usually last for many months.
A professional repair can be obtained from this firm:
www.polerepairs.co.uk/This will be as strong as the original section and costs between £15-20 for a standard repair.