We went to San Antonio when Ike hit Houston and stopped at a grocery store there to pick up some things on the way back to Houston because we still didn’t have power at home so no stores were open. Could have sworn it was a Safeway but it’s been a while so apparently I forgot.
I am north of Houston and didn't leave and Ike was still bad when it got here, power went out immediately. Don't expect anything to work right when a hurricane comes through. Our large hospital's generator didn't come on so they had no power. Critical patients were taken to San Antonio, 5 hours away.
The rest of the patients were stuck in dark, hot rooms. No operations could be done if someone had appeared with injury requiring surgery. This was a case of you treat yourself if you get hurt or sick. Your medical preps were important at that time. Also, you couldn't call 911 unless you had a land line phone - old time phone that plugs directly into the wall. I have one for that purpose so I could call out and get phone calls. My son in England called me to be sure I was okay and I got that call.
Since the hospital couldn't function, I don't know if an ambulance would even have shown up in that situation.
If something bad can happen, it probably will during an emergency. One should be prepared to live independently including medical care until the emergency is over.