You set up an appointment with a provider.  Her ad stated something about her taking precautions to prevent the spread of COVID.  Nothing specific - just a general statement.  Fast forward.  You arrive, knock on the door, and she takes your temperature with a laser.  Then she tells you that your temperature is too high so she won't see you.  What is your next move?  

You regret that when you saw her ad re “precautions” you didn’t ask her for specifics.  

Indeed. You leave.

If it was high enough to be concerning, I'd probably go home "just in case" I really had something, but if it were under a hundred I'd be calling my local K-Girl agency before I even turned around to leave and I'd be asking for the next available session.

If I test positive for covid, I go home and quarantine. If I test negative, I notify the lady and offer the paperwork as proof that I'm safe. If she still refuses to see me, I move on to another girlfriend.

but then where do you go? is the question. lol

Yes, read the fine print as it were. Who knew a virus would cause this activity to require legal reviews before committing.

A lot of these thermometers are less than well calibrated. Maybe also review the instructions to be sure it was used correctly and then retest both of us.

and if high, I'd get a COVID test.

This was a REAL problem at at least one of the infected meat packing plants in the midwest. After there were already a lot of infected workers, some places implemented testing: check the workers' temps before letting them in to work. If their temp was too high, they were turned away and sent home.  
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Some workers who KNEW that they had signs of fever / elevated body temp were taking aspirin or other over the counter antipyretics to lower their temps. That got them in to work where the spread continued. At some of those places, if you don't work ONE day, you are replaced by someone else and then you go to the end of the line of people waiting for work. I don't know the status of the worker paycheck protections at that time. For those for whom it is "work or starve", they don't always think about the larger ramifications of their actions.  
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If you have a temperature or other symptoms, DON'T MESS AROUND with other people by trying to hide the fact. Take a break. Shelter in place. Quarantine. Think of others, not just your own libido.
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New TER Poll: Are you Celsius or are you Fahrenheit?

Turn around and leave. As long as you didn't pay for the session or if you did and received your refund, it's fine.

Come on you can tell us, you just like "checking it" and it has nothing to do with COVID. lol

Damn, some asshole has my pen!

Fish knows the difference between an oral and rectal thermometer.  You can tell from the taste.

What do you mean where you go ? Try to book with another provider/agency, go to a strip club, storefront AMP or just do the John Travolta in pulp fiction and go home and jackoff (if you have a SO, you do that instead)