One of those IFTT style projects, at the height of the Getting Things Done fad era had features like this. You could set locations or triggers (leave home wifi network as a proxy for "car" or "leaving the house") that would prompt you with reminders from that list.
I cannot remember anything else about it but the idea seemed really useful if you could make it reliable.
I cannot remember anything else about it but the idea seemed really useful if you could make it reliable.