Canada/US 911 Service

as a snowbird I was disappointed to find out that our access to 911 service is device dependent. A box purchased in Canada can only have a Canadian service address and a box purchased in the US can only have a US service address. this results in 911 calls going to the wrong 911 call centre with the wrong address when using the box in the country where it was not purchased. I reviewing your on line documentation there are many references to the device working in the US and Canada as well as other countries. however, only taking the device outside of the US and/or Canada has a reference to 911 calling not working. As a result I am placing myself and my wive at risk for 6 months of the year. Is there any way that we can have the service address as US or Canada and 911 routing based on the service address we enter.