From what I understand, there are a number of hospitals that can do some measure of call-ahead scheduling for ERs. What would prevent you from asking about each

From what I understand, there are a number of hospitals that can do some measure of call-ahead scheduling for ERs. What would prevent you from asking about each hospital policy and at worst doing a Twilio automated call to the number if they choose that one? At worst your automated message would get hung up on, and you'd tell them that it could not be processed and tell them to go there directly. At best, you win because the ER staff hits the right keys for your automated message. Or they agree to do a full agreement with you.