Everyone has experienced that feeling of dread before. You slam the car door behind you, realizing as you do it that you've left the keys behind. You try the handle and confirm your fears; you're locked out. Panic sets in, and you know your day just got a lot longer.
It may be tempting to try and remedy the situation yourself. It's strongly recommended that you do not try this.
When you have an illness that's contagious, it is always important to keep your distance from people who could potentially catch the virus from you. During the COVID-19 pandemic of 2020, this exact concern is what led to many people being encouraged (and even mandated in some areas) to socially distance themselves from other people to avoid the spread of illness.
If you have been diagnosed with a contagious illness that would put others at risk, being stranded on the highway can put you in a precarious situation.