"Service" Stations no longer exist,
Not here, anyways. A gas station here in California usually has a cheap little compressor hidden somewhere, set to a maximum that is around 40 - 45 PSI, good only for car tires or the biggest off road MTB tires. If you do find an old-timey service station where they are running air tools the compressor is probably set to 160 PSI, so be very careful when airing up.