So first travel plans for about 2.5 years. Visiting family in Calgary in July for a month. Need to hire a car (with two toddlers, so need two car seats). We get in late (around 11PM) and am struggling to find any options. Seems most car rental places at the airport are closed and getting offsite near where we are staying (North West Calgary) doesn't seem an option.

I've searched around but without any luck.

Am I missing something or am not searching correctly?

Any tips would be greatly appreciated.

Thanks in advance