so i got my car detailed today. when i drove off from the detail shop,
i noticed the check engine light was on and steady.

the seats were very warm, and the heater was turned up hot all the
way. it looks like the detail shop left my car in idle for a while,
with the heater cranked, to dry the interior after they cleaned it.

is this something that can cause a check engine light to go on? i.e.
leaving the car in idle with the heater blasting?

i've never seen the check engine light on before, but the car does
have 85,000 miles. should i talk to the detail shop to pay for service
to check the light or is this just a coincidence?

the car is a 1997 porsche 911 targa (993).

thanks!
~bart